Eldad and Medad in Beha’alotcha: Spirit, Authority, and Decentralized Prophecy
This sheet explores Numbers 11:24–30, the episode of Eldad and Medad. The central question is whether prophetic רוח is mediated through Moses and institutional office, or whether YHWH may bestow it directly within the camp.
The reception history shows that small Hebrew details — וַיִּשָּׁאֲרוּ, וְהֵמָּה בַּכְּתֻבִים, מִתְנַבְּאִים, כְּלָאֵם, הַמְקַנֵּא, and מִי יִתֵּן — became major interpretive openings for rabbinic, medieval, targumic, and later theological voices.
The official appointment of the seventy elders
The following passage establishes the official institutional setting. YHWH commands Moses to gather seventy elders and bring them to the Tent of Meeting.

(טז) וַיֹּ֨אמֶר יהוה אֶל־מֹשֶׁ֗ה אֶסְפָה־לִּ֞י שִׁבְעִ֣ים אִישׁ֮ מִזִּקְנֵ֣י יִשְׂרָאֵל֒ אֲשֶׁ֣ר יָדַ֔עְתָּ כִּי־הֵ֛ם זִקְנֵ֥י הָעָ֖ם וְשֹׁטְרָ֑יו וְלָקַחְתָּ֤ אֹתָם֙ אֶל־אֹ֣הֶל מוֹעֵ֔ד וְהִֽתְיַצְּב֥וּ שָׁ֖ם עִמָּֽךְ׃ (יז) וְיָרַדְתִּ֗י וְדִבַּרְתִּ֣י עִמְּךָ֮ שָׁם֒ וְאָצַלְתִּ֗י מִן־הָר֛וּחַ אֲשֶׁ֥ר עָלֶ֖יךָ וְשַׂמְתִּ֣י עֲלֵיהֶ֑ם וְנָשְׂא֤וּ אִתְּךָ֙ בְּמַשָּׂ֣א הָעָ֔ם וְלֹא־תִשָּׂ֥א אַתָּ֖ה לְבַדֶּֽךָ׃

(16) Then GOD said to Moses, “Gather for Me seventy of Israel’s elders of whom you have experience as elders and officers of the people, and bring them to the Tent of Meeting and let them take their place there with you. (17) I will come down and speak with you there, and I will draw upon the spirit that is on you and put it upon them; they shall share the burden of the people with you, and you shall not bear it alone.

The key phrase is:
וְאָצַלְתִּי מִן־הָרוּחַ אֲשֶׁר עָלֶיךָ וְשַׂמְתִּי עֲלֵיהֶם
The spirit placed on the elders is described as being drawn from the spirit already upon Moses. This creates the background against which Eldad and Medad become unusual: their prophecy occurs in the camp, not at the Ohel, and later interpreters ask whether their spirit is mediated through Moses or given directly by GOD.
The core episode: Eldad and Medad prophesy in the camp
This is the central text:

(כד) וַיֵּצֵ֣א מֹשֶׁ֔ה וַיְדַבֵּר֙ אֶל־הָעָ֔ם אֵ֖ת דִּבְרֵ֣י יהוה וַיֶּאֱסֹ֞ף שִׁבְעִ֥ים אִישׁ֙ מִזִּקְנֵ֣י הָעָ֔ם וַֽיַּעֲמֵ֥ד אֹתָ֖ם סְבִיבֹ֥ת הָאֹֽהֶל׃ (כה) וַיֵּ֨רֶד יהוה ׀ בֶּעָנָן֮ וַיְדַבֵּ֣ר אֵלָיו֒ וַיָּ֗אצֶל מִן־הָר֙וּחַ֙ אֲשֶׁ֣ר עָלָ֔יו וַיִּתֵּ֕ן עַל־שִׁבְעִ֥ים אִ֖ישׁ הַזְּקֵנִ֑ים וַיְהִ֗י כְּנ֤וֹחַ עֲלֵיהֶם֙ הָר֔וּחַ וַיִּֽתְנַבְּא֖וּ וְלֹ֥א יָסָֽפוּ׃ (כו) וַיִּשָּׁאֲר֣וּ שְׁנֵֽי־אֲנָשִׁ֣ים ׀ בַּֽמַּחֲנֶ֡ה שֵׁ֣ם הָאֶחָ֣ד ׀ אֶלְדָּ֡ד וְשֵׁם֩ הַשֵּׁנִ֨י מֵידָ֜ד וַתָּ֧נַח עֲלֵהֶ֣ם הָר֗וּחַ וְהֵ֙מָּה֙ בַּכְּתֻבִ֔ים וְלֹ֥א יָצְא֖וּ הָאֹ֑הֱלָה וַיִּֽתְנַבְּא֖וּ בַּֽמַּחֲנֶֽה׃ (כז) וַיָּ֣רׇץ הַנַּ֔עַר וַיַּגֵּ֥ד לְמֹשֶׁ֖ה וַיֹּאמַ֑ר אֶלְדָּ֣ד וּמֵידָ֔ד מִֽתְנַבְּאִ֖ים בַּֽמַּחֲנֶֽה׃ (כח) וַיַּ֜עַן יְהוֹשֻׁ֣עַ בִּן־נ֗וּן מְשָׁרֵ֥ת מֹשֶׁ֛ה מִבְּחֻרָ֖יו וַיֹּאמַ֑ר אֲדֹנִ֥י מֹשֶׁ֖ה כְּלָאֵֽם׃ (כט) וַיֹּ֤אמֶר לוֹ֙ מֹשֶׁ֔ה הַֽמְקַנֵּ֥א אַתָּ֖ה לִ֑י וּמִ֨י יִתֵּ֜ן כׇּל־עַ֤ם יהוה נְבִיאִ֔ים כִּי־יִתֵּ֧ן יהוה אֶת־רוּח֖וֹ עֲלֵיהֶֽם׃ (ל) וַיֵּאָסֵ֥ף מֹשֶׁ֖ה אֶל־הַֽמַּחֲנֶ֑ה ה֖וּא וְזִקְנֵ֥י יִשְׂרָאֵֽל׃

(24) Moses went out and reported GOD’s words to the people. He gathered seventy of the people’s elders and stationed them around the Tent. (25) Then, after coming down in a cloud and speaking to him, GOD drew upon the spirit that was on him and put it upon the seventy elders. And when the spirit rested upon them, they spoke in ecstasy, but did not continue. (26) Two of the men, one named Eldad and the other Medad, had remained in camp; yet the spirit rested upon them—they were among those recorded, but they had not gone out to the Tent—and they spoke in ecstasy in the camp. (27) An assistant ran out and told Moses, saying, “Eldad and Medad are acting the prophet in the camp!” (28) And Joshua son of Nun, Moses’ attendant from his youth, spoke up and said, “My lord Moses, restrain them!” (29) But Moses said to him, “Are you wrought up on my account? Would that all GOD’s people were prophets, that GOD inspired them!” (30) Moses then reentered the camp together with the elders of Israel.

Several Hebrew expressions drive the reception history:
  1. וַיִּתְנַבְּאוּ וְלֹא יָסָפוּ - The seventy elders prophesy, but the meaning of “did not continue / did not cease” becomes debated.
  2. וַיִּשָּׁאֲרוּ שְׁנֵי־אֲנָשִׁים בַּמַּחֲנֶה - Eldad and Medad “remained” in the camp. Did they remain physically, humbly withdraw, or remain unselected when picking the elders?
  3. וְהֵמָּה בַּכְּתֻבִים - they were “among the written/registered ones.” This phrase is syntactically compressed and presents us with a key interpretive problem.
  4. מִתְנַבְּאִים בַּמַּחֲנֶה - the report uses a participial form, “are prophesying,” which later sources treat as significant.
  5. אֲדֹנִי מֹשֶׁה כְּלָאֵם - Interstingly, Joshua asks Moses to restrain, imprison, or stop them.
  6. וּמִי יִתֵּן כׇּל־עַם יהוה נְבִיאִים - Moses expresses a wish: “Would that all YHWH’s people were prophets.”
  7. כִּי־יִתֵּן יהוה אֶת־רוּחוֹ עֲלֵיהֶם - the final clause raises the question of direct divine giving of spirit.
Lexical anchorpoints
BDB lexicon provides the following details for the semantic range for these keyword.
BDB defines נבא as “prophesy,” with a semantic range that include older ecstatic forms (i.e. extreme joy) and later religious instruction, sometimes with prediction. This range matters for Numbers 11 because the text can be read as ecstatic speech, inspired speech, predictive prophecy, or unauthorized religious activity.
BDB gives the broad semantic field of רוּחַ as breath, wind, and spirit. In Numbers 11 the context narrows the meaning toward divine prophetic spirit because רוח is placed upon the elders and immediately results in prophecy.
The root כלא means “shut up, restrain, withhold.” BDB explicitly lists כְּלָאֵם in Numbers 11:28. This supports multiple reception possibilities: Joshua may be asking Moses to imprison them, restrain them, or stop them from prophesying.
The verb קנא can mean jealousy, envy, or zeal. In Numbers 11:29 the construction הַמְקַנֵּא אַתָּה לִי uses לִי, “for me / on my behalf.” Moses asks whether Joshua is being zealous for Moses’ honor.
Tannaitic reception: who remained, and why?

(ב) וישארו שני אנשים במחנה. יש אומרים בקלפי נשתיירו, לפי שאמר לו הקב"ה למשה לבור לו שבעים זקנים, אמר משה: מה אני עושה? הרי הם נופלים ששה וששה לכל שבט ושבט, וחמשה חמשה לשני שבטים! איזה שבט מקבל עליו לבור ממנו חמשה? עשה משה תקנה: נטל פתקים וכתב עליהם "זקן" ונטל שני פתקים חלקים, ובללן והטילם לתוך קלפי. אמר להם בואו וטלו פתקיכם! כל מי שנטל פתק וכתוב עליו "זקן" היה אומר לו משה כבר קידשך המקום; וכל מי שהיה נוטל פתק שלא היה כתוב בתוכו "זקן" היה משה אומר לו: מן השמים הוא, מה אני יכול לעשות לך? כיוצא בו אתה אומר [[במדבר ג] "ואת פדויי השלשה..." אמר משה: מה אני אעשה? עכשיו כל אחד ואחד אמר פדאני לוי! עשה משה תקנה: נטל פתקים וכתב עליהם לוי, ונטל פתקים וכתב עליהם כסף חמשת שקלים, ובללם והטילם בקלפי. אמר להם בואו וטלו פתקיכם! כל מי שנטל פתקו וכתוב היה עליו בן לוי – אומר לו כבר אתה פדוי. ומי שנטל פתקו וכתוב עליו כסף חמשת שקלים – היה משה אומר לו צא ותן פדיונך! ר' שמעון אומר: במחנה נשתיירו, לפי שראו את משה שמברר לו הזקנים, אמרו אין אנו כדי לגדולה זו. הלכו והטמינו את עצמם. אמר להם המקום: אתם מעטתם עצמכם – אני אגדל אתכם יותר מכולם! בשבעים זקנים אומר "ויתנבאו ולא יספו" יתנבאו לפי שעה. באלדד ומידד הוא אומר "ויתנבאו במחנה", שהיו מתנבאים עד יום מותם. ומה היו אומרים? משה מת ויהושע מכניס את ישראל לארץ:

(2) (Ibid. 26) "And there remained two men in the camp": Some say: They (i.e., their ballots) remained in the ballot box. When the Holy One Blessed be He told Moses to select seventy elders, Moses asked himself: What am I to do? I must select six from each (of the tribes) and five from two tribes. Which tribe will consent to only five? Moses did as follows: He took seventy ballots and wrote on them "elder," and two blank ballots and mixed them (with the others) in the ballot box, and he said to them: Come and take your ballots. Whoever came up with a ballot marked "zaken," was told by Moses: "The L-rd has already selected you," and whoever came up with a blank ballot was told by Moses: It is the will of Heaven — what can I do? Similarly, (Bamidbar 3:96) "And (for) the redemption (money) of the two hundred and seventy-three of the first-born of the children of Israel over and above the (number of the) Levites, etc." Moses said what am I to do now? Each one (of the Israelite first-born) will say: A Levite has redeemed me! Moses did as follows: He took (22,000) ballots and wrote upon them "Levite," and (273) ballots and wrote upon them "five shekels," placed them in a ballot box and said to them: Come and take your ballots. Whoever came up with a ballot marked "Levite" was told by Moses: "You have already been redeemed," and whoever came up with a ballot marked "five shekalim" was told by Moses: "Go and give your redemption money (to the Cohanim). R. Shimon says (on Bamidbar 11:26): "They (Eldad and Medad) remained in the camp, for when they saw Moses selecting elders, they said: We are not deserving of this honor, saying which, they went and hid themselves — whereupon the L-rd said to them: You lowered yourselves; I will exalt you above all the others: Of the seventy elders it is written (Ibid. 25) "And they prophesied — but (after that day), they prophesied no more," whereas of Eldad and Medad it is written (Ibid. 27) "They are prophesying in the camp" — until the day of their death. And what were they saying? "Moses will die and Joshua will bring Israel to Eretz Yisrael."

Sifrei gives two major readings of וַיִּשָּׁאֲרוּ.
One view reads the phrase through the lottery: their ballots remained in the box. Moses had to select seventy elders from seventy-two candidates, so he used slips marked “elder” and blank slips.
R. Shimon gives another reading: Eldad and Medad remained in the camp because they considered themselves unworthy of greatness. Their humility becomes the reason God exalts them. The seventy elders prophesied only temporarily, but Eldad and Medad continued to prophesy.
Tannaitic reception: Joshua’s objection and Moses’ answer

(א) וירץ הנער ויגד למשה. יש אומרים זה יהושע, כענין שנאמר שמות לג ומשרתו יהושע בן נון נער. ר' שמעון אומר: הרי הוא אומר "ויען יהושע בן נון משרת משה", הא לא היה ראשון יהושע! אדני משה כלאם. אמר: רבוני, כלאם מן העולם, בני אדם שמבשרים בשורה זו רעה. רבי אומר: אוסרם בזיקים ובקולרות, כמה שנאמר (ירמיה לז) ונתתם אותו בית הכלא: ויאמר לו משה המקנא אתה לי. אמר לו: יהושע, בך אני מקנא! לואי אתה כיוצא בו ולואי כל ישראל כיוצא בך! מי יתן את כל עם יהוה נביאים: ויאסף משה אל המחנה. מלמד שלא הביא עליהם הפורענות עד שנכנסו כל הצדיקים במחנה:

(1) (Bamidbar 11:27) "And the youth ran and he told Moses": Some say that this is Joshua, as in (Shemot 33:11) "And his (Moses') attendant, Joshua the son of Nun, a youth." R. Shimon says: It is written (Bamidbar, Ibid. 28) "And Joshua the son of Nun the servant of Moses from his youth responded": The first one, then, (i.e., "the youth") is not Joshua. (Ibid.) "My lord, Moses, kela'em": He said: My master, end them from the world, men who utter this evil report (that Moses will die). Rebbi says: (He said) Confine them in chains and collars, as in (Jeremiah 37:18) "… that you have put me into the prison house" ("beth hakeleh"). (Ibid. 29) "And Moses said to him: Are you zealous for my sake?" He said to him: Joshua, am I zealous for your sake? Would that you were a prophet like me (i.e., that your prophecy be directly from the L-rd), and that all of Israel be like you (in that regard) — (Ibid.) "Would that all the L-rd's people were prophets (by direct inspiration, and not by [indirect] "increase of spirit," viz. Ibid. 25). (Ibid. 30) "And Moses retired into (his tent in) the camp, he and the elders of Israel." We are hereby taught that He did not bring the calamity upon them until there entered (his tent) all of the righteous in the camp.

Sifrei gives several interpretations of כְּלָאֵם. One reading takes it harshly: Joshua asks Moses to remove them from the world because they announce bad news, namely that Moses will die. Another reading takes it as confinement.
Moses’ response is then read as radically generous: “Would that you were a prophet like me, and that all Israel were like you.” Sifrei therefore reads Moses’ reply as a desire for direct prophetic inspiration, not merely an increase of spirit mediated through Moses.
Bavli reception: lottery, humility, and the content of the prophecy

תָּנוּ רַבָּנַן: ״וַיִּשָּׁאֲרוּ שְׁנֵי אֲנָשִׁים בַּמַּחֲנֶה״. יֵשׁ אוֹמְרִים: בַּקַּלְפִּי נִשְׁתַּיְּירוּ. שֶׁבְּשָׁעָה שֶׁאָמַר לוֹ הַקָּדוֹשׁ בָּרוּךְ הוּא לְמֹשֶׁה: ״אֶסְפָה לִּי שִׁבְעִים אִישׁ מִזִּקְנֵי יִשְׂרָאֵל״, אָמַר מֹשֶׁה: כֵּיצַד אֶעֱשֶׂה? אֶבְרוֹר שִׁשָּׁה מִכׇּל שֵׁבֶט וְשֵׁבֶט – נִמְצְאוּ שְׁנַיִם יְתֵירִים. אֶבְרוֹר חֲמִשָּׁה חֲמִשָּׁה מִכׇּל שֵׁבֶט וְשֵׁבֶט – נִמְצְאוּ עֲשָׂרָה חֲסֵרִים. אֶבְרוֹר שִׁשָּׁה מִשֵּׁבֶט זֶה וַחֲמִשָּׁה מִשֵּׁבֶט זֶה – הֲרֵינִי מֵטִיל קִנְאָה בֵּין הַשְּׁבָטִים. מָה עָשָׂה? בֵּירַר שִׁשָּׁה שִׁשָּׁה, וְהֵבִיא שִׁבְעִים וּשְׁנַיִם פִּיתְקִין. עַל שִׁבְעִים כָּתַב ״זָקֵן״, וּשְׁנַיִם הִנִּיחַ חָלָק. בְּלָלָן וּנְתָנָן בְּקַלְפִּי. אָמַר לָהֶם: בּוֹאוּ וּטְלוּ פִּיתְקֵיכֶם! כׇּל מִי שֶׁעָלָה בְּיָדוֹ ״זָקֵן״, אָמַר: כְּבָר קִידֶּשְׁךָ שָׁמַיִם. מִי שֶׁעָלָה בְּיָדוֹ חָלָק, אָמַר: הַמָּקוֹם לֹא חָפֵץ בְּךָ, אֲנִי מָה אֶעֱשֶׂה לָךְ? כְּיוֹצֵא בַּדָּבָר אַתָּה אוֹמֵר: ״וְלָקַחְתָּ חֲמֵשֶׁת חֲמֵשֶׁת שְׁקָלִים לַגֻּלְגֹּלֶת״. אָמַר מֹשֶׁה: כֵּיצַד אֶעֱשֶׂה לָהֶן לְיִשְׂרָאֵל? אִם אוֹמַר לוֹ: תֵּן לִי פִּדְיוֹנְךָ וָצֵא, יֹאמַר לִי: כְּבָר פְּדָאַנִי בֶּן לֵוִי. מָה עָשָׂה? הֵבִיא עֶשְׂרִים וּשְׁנַיִם אֲלָפִים פִּיתְקִין, וְכָתַב עֲלֵיהֶן ״בֶּן לֵוִי״, וְעַל שְׁלֹשָׁה וְשִׁבְעִים וּמָאתַיִם כָּתַב עֲלֵיהֶן ״חֲמִשָּׁה שְׁקָלִים״. בְּלָלָן וּנְתָנָן בְּקַלְפִּי. אָמַר לָהֶן: טְלוּ פִּיתְקֵיכֶם. מִי שֶׁעָלָה בְּיָדוֹ ״בֶּן לֵוִי״, אָמַר לוֹ: כְּבָר פְּדָאֲךָ בֶּן לֵוִי. מִי שֶׁעָלָה בְּיָדוֹ ״חֲמֵשֶׁת שְׁקָלִים״, אָמַר לוֹ: תֵּן פִּדְיוֹנְךָ וָצֵא. רַבִּי שִׁמְעוֹן אוֹמֵר: בַּמַּחֲנֶה נִשְׁתַּיְּירוּ. בְּשָׁעָה שֶׁאָמַר לוֹ הַקָּדוֹשׁ בָּרוּךְ הוּא לְמֹשֶׁה ״אֶסְפָה לִּי שִׁבְעִים אִישׁ״, אָמְרוּ אֶלְדָּד וּמֵידָד: אֵין אָנוּ רְאוּיִין לְאוֹתָהּ גְּדוּלָּה. אָמַר הַקָּדוֹשׁ בָּרוּךְ הוּא: הוֹאִיל וּמִיעַטְתֶּם עַצְמְכֶם, הֲרֵינִי מוֹסִיף גְּדוּלָּה עַל גְּדוּלַּתְכֶם. וּמָה גְּדוּלָּה הוֹסִיף לָהֶם? שֶׁהַנְּבִיאִים כּוּלָּן נִתְנַבְּאוּ וּפָסְקוּ, וְהֵם נִתְנַבְּאוּ וְלֹא פָּסְקוּ. וּמָה נְבוּאָה נִתְנַבְּאוּ? אָמְרוּ: מֹשֶׁה מֵת, יְהוֹשֻׁעַ מַכְנִיס אֶת יִשְׂרָאֵל לָאָרֶץ. אַבָּא חָנִין אוֹמֵר מִשּׁוּם רַבִּי אֱלִיעֶזֶר: עַל עִסְקֵי שְׂלָיו הֵן מִתְנַבְּאִים: עֲלִי שְׂלָיו, עֲלִי שְׂלָיו. רַב נַחְמָן אָמַר: עַל עִסְקֵי גּוֹג וּמָגוֹג הָיוּ מִתְנַבְּאִין, שֶׁנֶּאֱמַר: ״כֹּה אָמַר יהוה אֱלֹהִים הַאַתָּה הוּא אֲשֶׁר דִּבַּרְתִּי בְּיָמִים קַדְמוֹנִים בְּיַד עֲבָדַי נְבִיאֵי יִשְׂרָאֵל הַנִּבְּאִים בַּיָּמִים הָהֵם שָׁנִים לְהָבִיא אֹתְךָ עֲלֵיהֶם וְגוֹ׳״. אַל תִּיקְרֵי ״שָׁנִים״ אֶלָּא ״שְׁנַיִם״. אֵילּוּ הֵן שְׁנַיִם נְבִיאִים שֶׁנִּתְנַבְּאוּ בְּפֶרֶק אֶחָד נְבוּאָה אַחַת? הֱוֵי אוֹמֵר: אֶלְדָּד וּמֵידָד. אָמַר מָר: כׇּל הַנְּבִיאִים כּוּלָּן נִתְנַבְּאוּ וּפָסְקוּ, וְהֵן נִתְנַבְּאוּ וְלֹא פָּסְקוּ. מְנָא לַן דְּפָסְקוּ? אִילֵּימָא מִדִּכְתִיב: ״וַיִּתְנַבְּאוּ וְלֹא יָסָפוּ״? אֶלָּא מֵעַתָּה: ״קוֹל גָּדוֹל וְלֹא יָסָף״ – הָכִי נָמֵי דְּלָא אוֹסֵיף הוּא? אֶלָּא דְּלָא פְּסַק הוּא! אֶלָּא, הָכָא כְּתִיב: ״וַיִּתְנַבְּאוּ״, הָתָם כְּתִיב: ״מִתְנַבְּאִים״. עֲדַיִין מִתְנַבְּאִים וְהוֹלְכִים. בִּשְׁלָמָא לְמַאן דְּאָמַר מֹשֶׁה מֵת, הַיְינוּ דִּכְתִיב ״אֲדֹנִי מֹשֶׁה כְּלָאֵם״. אֶלָּא לְמַאן דְּאָמַר הָנָךְ תַּרְתֵּי, מַאי ״אֲדֹנִי מֹשֶׁה כְּלָאֵם״? דְּלָאו אוֹרַח אַרְעָא, דְּהָוֵה לֵיהּ כְּתַלְמִיד הַמּוֹרֶה הֲלָכָה לִפְנֵי רַבּוֹ. בִּשְׁלָמָא לְמַאן דְּאָמַר הָנָךְ תַּרְתֵּי, הַיְינוּ דִּכְתִיב: ״מִי יִתֵּן״. אֶלָּא לְמַאן דְּאָמַר מֹשֶׁה מֵת, מֵינָח הֲוָה נִיחָא לֵיהּ? לָא סַיְּימוּהָ קַמֵּיהּ. מַאי ״כְּלָאֵם״? אֲמַר לֵיהּ: הַטֵּל עֲלֵיהֶן צׇרְכֵי צִיבּוּר, וְהֵן כָּלִין מֵאֵילֵיהֶן.

§ Apropos the appointment of the Elders by Moses, the Gemara discusses additional aspects of that event. There were seventy-two candidates for Elder but only seventy were needed. They were chosen by lots with their names put into a box. The Sages taught: The verse states: “And there remained two men in the camp; the name of one was Eldad and the name of the other Medad, and the spirit rested upon them, and they were among those who were written but who did not go out to the tent, and they prophesied in the camp” (Numbers 11:26). Where did they remain? Some say this means they, i.e., their names, remained excluded from those selected from the lots in the box.The baraita explains: At the time that the Holy One, Blessed be He, said to Moses: “Gather for Me seventy men of the Elders of Israel” (Numbers 11:16), Moses said: How shall I do it? If I select six from each and every tribe, there will be a total of seventy-two, which will be two extra. But if I select five from each and every tribe, there will be a total of sixty, lacking ten. And if I select six from this tribe and five from that tribe, I will bring about envy between the tribes, as those with fewer representatives will resent the others. What did he do? He selected six from every tribe and he brought seventy-two slips [pitakin]. On seventy of them he wrote: Elder, and he left two of them blank. He mixed them and placed them in the box. He then said to the seventy-two chosen candidates: Come and draw your slips. Everyone whose hand drew up a slip that said: Elder, he said to him: Heaven has already sanctified you. And everyone whose hand drew up a blank slip, he said to him: The Omnipresent does not desire you; what can I do for you?The Gemara comments: You can say something similar to this to explain the verse about the redemption of the firstborn by the Levites: “Take the Levites in place of all of the firstborn of the children of Israel…and as for the redemption of the 273 of the firstborn of the children of Israel who are in excess over the number of the Levites…you shall take five shekels per head” (Numbers 3:45–47). It can be explained that Moses said: How shall I do this for the Jews? If I say to one of the firstborns: Give me money for your redemption and you may leave, as you are among the 273 extra firstborns, he will say to me: A Levite already redeemed me; what is the reason you think that I am among those who were not redeemed? What did he do? He brought 22,000 slips (see Numbers 3:39), and he wrote on them: Levite, and on 273 additional ones he wrote: Five shekels. He mixed them up and placed them in a box. He said to them: Draw your slips. Everyone whose hand drew up a slip that said: Levite, he said to him: A Levite already redeemed you. Everyone whose hand drew up a slip that said: Five shekels, he said to him: Pay your redemption money and you may leave.Rabbi Shimon says: Eldad and Medad remained in the camp, as they did not want to come to the lottery for the Elders. At the time that the Holy One, Blessed be He, said to Moses: Gather for me seventy Elders, Eldad and Medad said: We are not fitting for that level of greatness; we are not worthy of being appointed among the Elders. The Holy One, Blessed be He, said: Since you have made yourselves humble, I will add greatness to your greatness. And what is the greatness that he added to them? It was that all of the prophets, meaning the other Elders, who were given prophecy, prophesied for a time and then stopped prophesying, but they prophesied and did not stop.Apropos Eldad and Medad being prophets, the Gemara asks: And what prophecy did they prophesy? They said: Moses will die, and Joshua will bring the Jewish people into Eretz Yisrael. Abba Ḥanin says in the name of Rabbi Eliezer: They prophesied about the matter of the quail that came afterward (Numbers 11:31–33), saying: Arise quail, arise quail, and then the quail came. Rav Naḥman says: They were prophesying about the matter of Gog and Magog, as it is stated with regard to Gog and Magog: “So says the Lord God: Are you the one of whom I spoke in ancient days, through my servants, the prophets of Israel, who prophesied in those days for many years [shanim] that I would bring you against them?” (Ezekiel 38:17). Do not read it as: “Years [shanim]”; rather, read it as: Two [shenayim]. And who are the two prophets who prophesied the same prophecy at the same time? You must say: Eldad and Medad.The Master says: The baraita said: All of the prophets prophesied and then stopped, but Eldad and Medad prophesied and did not stop. The Gemara asks: From where do we derive that the other prophets stopped prophesying? If we say it is from that which is written about them: “And they prophesied but they did so no more [velo yasafu]” (Numbers 11:25), that is difficult: But if that is so, then concerning that which is stated in relation to the giving of the Torah: “These words the Lord spoke to all your assembly…with a great voice, and it went on no more [velo yasaf]” (Deuteronomy 5:19), so too shall it be understood that the great voice did not continue? Rather, the intention there is that it did not stop, interpreting the word yasafu as related to sof, meaning: End. Consequently, with regard to the seventy Elders as well, the word can be interpreted to mean that they did not stop prophesying. Rather, the proof is as follows: It is written here with regard to the seventy Elders: “They prophesied” (Numbers 11:25), and it is written there: “Eldad and Medad are prophesying in the camp” (Numbers 11:27), from which it can be derived that they were continuously prophesying.With regard to the content of Eldad and Medad’s prophecy, the Gemara asks: Granted, according to the one who says their prophecy was that Moses will die, this is the reason for that which is written there: “And Joshua, son of Nun, the servant of Moses from his youth, answered and said: My master Moses, imprison them” (Numbers 11:28), as their prophecy appeared to be a rebellion against Moses. But according to the one who says those other two opinions with regard to the content of the prophecy, according to which their prophecy had no connection to Moses, what is the reason that Joshua said: “My master Moses, imprison them”? The Gemara answers: He said this because it is not proper conduct for them to prophesy publicly in close proximity to Moses, as by doing so they are like a student who teaches a halakha in his teacher’s presence, which is inappropriate. The Gemara asks: Granted, according to the one who says those other two opinions, this is the reason for that which is written: “And Moses said to him: Are you jealous for my sake? Would that all of the Lord’s people were prophets” (Numbers 11:29). But according to the one who says that Eldad and Medad prophesied that Moses will die and Joshua will bring Israel into the land, would it have been satisfactory to Moses that all of the people of God would utter similar prophecies? The Gemara answers: They did not conclude it before him. Moses was not aware of what they had said, but only that they were prophesying. The Gemara asks: What is the meaning of: “Imprison them [kela’em]”? The Gemara answers: Joshua said to him: Place responsibility for the needs of the public upon them, so that they will be occupied like the other Elders of Israel and they will cease [kalin] prophesying, on their own. Due to the burden of public responsibility they would not be able to be prophets.

Sanhedrin 17a is the central rabbinic discussion of Eldad and Medad. It develops the lottery tradition: seventy-two candidates are available for seventy elder positions. It also develops the humility tradition: Eldad and Medad did not seek greatness, and therefore God added greatness to them.
The Bavli also preserves three traditions about the content of their prophecy:
1. Moses will die, and Joshua will bring Israel into the land.
2. The quail will come.
3. Gog and Magog will come in the eschatological future.
The Bavli also treats the participial מִתְנַבְּאִים as significant: Eldad and Medad were continuously prophesying, unlike the other elders.
Rashi: humility, written lots, and Moses’ death

(א)וישארו שני אנשים. מֵאוֹתָן שֶׁנִּבְחֲרוּ, אָמְרוּ אֵין אָנוּ כְּדַאי לִגְדֻלָּה זוֹ (עי' סנהדרין י"ז): (ב)והמה בכתבים. בַּמְבֹרָרִים שֶׁבָּהֶם לְסַנְהֶדְרִין, וְנִכְתְּבוּ כֻלָּם נְקוּבִים בְּשֵׁמוֹת וְעַ"יְ גּוֹרָל, לְפִי שֶׁהַחֶשְׁבּוֹן עוֹלֶה לְי"ב שְׁבָטִים שִׁשָּׁה שִׁשָּׁה לְכָל שֵׁבֶט וָשֵׁבֶט, חוּץ מִשְּׁנֵי שְׁבָטִים שֶׁאֵין מַגִּיעַ אֲלֵיהֶם אֶלָּא חֲמִשָּׁה חֲמִשָּׁה, אָמַר מֹשֶׁה אֵין שֵׁבֶט שׁוֹמֵעַ לִי לִפְחוֹת מִשִּׁבְטוֹ זָקֵן אֶחָד, מֶה עָשָׂה, נָטַל ע"ב פְתָקִין וְכָתַב עַל שִׁבְעִים "זָקֵן" וְעַל שְׁנַיִם חָלָק וּבֵרֵר מִכָּל שֵׁבֶט וָשֵׁבֶט שִׁשָּה, וְהָיוּ ע"ב, אָמַר לָהֶם, טְלוּ פִתְקֵיכֶם מִתּוֹךְ קַלְפִּי, מִי שֶׁעָלָה בְיָדוֹ "זָקֵן" נִתְקַדֵּשׁ, מִי שֶׁעָלָה בְיָדוֹ חָלָק אָמַר לוֹ, הַמָּקוֹם לֹא חָפֵץ בָּךְ (ספרי; סנהדרין י"ז): (א)וירץ הנער. יֵ"א גֵּרְשׁוֹם בֶּן מֹשֶׁה הָיָה (עי' ילקוט): (א)כלאם. הַטֵּל עֲלֵיהֶם צָרְכֵי צִבּוּר וְהֵם כָּלִים מֵאֲלֵיהֶם; דָּ"אַ, תְּנֵם אֶל בֵּית הַכֶּלֶא, לְפִי שֶׁהָיוּ מִתְנַבְּאִים מֹשֶׁה מֵת וִיהוֹשֻׁעַ מַכְנִיס אֶת יִשְׂרָאֵל לָאָרֶץ (עי' ספרי): (א)המקנא אתה לי. הֲקִנְאָתִי אַתָּה מְקַנֵּא: (ב)לי. כְּמוֹ בִּשְׁבִילִי; כָּל לְשׁוֹן קִנְאָה אָדָם הַנּוֹתֵן לֵב עַל הַדָּבָר, אוֹ לִנְקֹם, אוֹ לַעֲזֹר, אנפר"מנט בְּלַעַז, אוֹחֵז בְּעֹבִי הַמַּשָּׂא:

(1) וישארו שני אנשים BUT THERE REMAINED TWO MEN [IN THE CAMP] — i. e. two of them that had been selected. They remained, in the camp because they said, “We are not worthy of this distinction” (Sifrei Bamidbar 95:2). (2) והמה בכתובים [BUT THERE REMAINED TWO MEN IN THE CAMP] … AND THEY WERE AMONGST THEM THAT WERE WRITTEN — i.e. they were amongst those of them (of the people) who had been selected to constitute the Sanhedrion. For all these were written down, mentioned expressly by their names, but the requisite number was chosen by lot, because the calculation gives for twelve tribes, six elders for each tribe, with the exception of two tribes to each of which there would belong only five elders. Moses said, “No tribe will listen to me to have one elder less for his tribe!” What did he do? He took seventy-two tablets and wrote on seventy of them the word “Elder” and on two he left the surface blank. He then selected six men of each tribe so that there were altogether 72. He said to them, “Draw your tablets from the urn”. He in whose hand there came up a tablet bearing the inscription “Elder” was set apart as a member of the Sanhedrion, whilst to him in whose hand there came up a blank tablet, he said, “The Omnipresent does not require you” (Sifrei Bamidbar 95:2; Sanhedrin 17a). (1) וירץ הנער THERE RAN THE LAD — There are some who say that it was Gershom, the son of Moses (Midrash Tanchuma, Beha'alotcha 12). (1) כלאם — (This is taken as the equivalent of כַּלֵּם, “destroy them”, “make an end of them”; cf. Rashi on Exodus 17:9) — He meant: cast upon them the responsibility for public affairs and they will of themselves soon come to an end (through the worry and anxiety this entails). — Another explanation is: that the word means put them into prison (כלא). He said this because they were prophesying, “Moses will die and Joshua will bring Israel into the Land” (cf. Sifrei Bamidbar 96; Sanhedrin 17a). (1) המקנא אתה לי means, “art thou envying where I should envy”. (2) לי — the word לי meaning the same as בשבילי, “for my sake”. Wherever an expression of the root קנא is used it implies that a person sets his heart on the matter, whether it be to take vengeance or to help; — emportement in O. F. (English = zeal) — he holds the thickest (heaviest) part of the load (i.e. he takes the responsibility for carrying out a matter).

Rashi closely follows Sifrei and Sanhedrin. He explains וַיִּשָּׁאֲרוּ as referring to those who had been selected but stayed in the camp because they said they were unworthy of greatness. He explains וְהֵמָּה בַּכְּתֻבִים through the written slips used to select the elders.
On כְּלָאֵם, Rashi gives two readings: impose public responsibilities on them so that they collapse under the burden, or place them in prison. The second reading is connected with the tradition that they prophesied: “Moses will die and Joshua will bring Israel into the land.”
Ibn Ezra: grammar and idiom

(א)והמה בכתובים. בתחלה: (ב)ולא יצאו. ממחנה ישראל אל אהל מועד: (א)וירץ הנער. בה"א הוא הנודע לשרת משה חוץ מיהושע כי שרות יהושע איננו כשרות כל נער: (א)מבחוריו. יש אומרים שפירושו מבחרותו והטעם שלא אמר כדברי זקן ויש מדביקים מבחוריו עם משרת משה והטעם ששרת אותו מיום שהיה בחור וזה איננו נכון כי זה המעשה היה בשנה השנית והנכון בעיני שהוא מבחוריו הוא מהמובחרים לשרת משה כי אחרים יש עמו ודע כי מלת בחור בלשון רבים פעם תשתנה ופעם לא תשתנה וכן מלת סריס אולי הם שני משקלים: (ב)כלאם. נפתח הלמ"ד בעבור אות הגרון הבא אחריו: (א) ונפתחה ה"א המקנא. והיה ראוי להיותו בשו"א ובפת"ח ובעבור היותו תחת המ"ם שוא נע ושני שואים נעים לא יתחברו לעולם: (ב) ומלת מי יתן. כשואל חפץ בדבר כאומר מי יתן לי זאת השאלה והחפץ:

(1) AND THEY WERE OF THEM THAT WERE RECORDED. At first. (2) BUT HAD NOT GONE OUT. From the camp of Israel to the tent of meeting. (1) AND THERE RAN A YOUNG MAN. The word na’ar (young man) has the definite article prefixed to it because it refers to the young man who, aside from Joshua, was known to serve Moses. For Joshua’s service was not the usual service rendered by young men. (1) FROM HIS YOUTH UP. Some say that the meaning of mi-bechurav (from his youth up) is, from his youth. It means that he did not speak as an elder speaks. Others connect mi-bechurav (from his youth up) to mesharet mosheh (the minister of Moses); this means the one who served Moses from the time of his youth. However, this is incorrect, for this event occurred in the second year. In my opinion, the word mi-bechurav means from the chosen. It means that he was one of those chosen to serve Moses, for there were others with him. Note that the word bachur (youth, or chosen) sometimes changes in the plural and sometimes does not. The same applies to the word saris (officer). It is also possible that they belong to two different paradigms. (2) SHUT THEM IN. The lamed of kela’em (shut them in) is vocalized with a pattach because a guttural follows it. (1) [ART THOU JEALOUS.] The heh of ha-mekanne (art thou jealous) is vocalized with a pattach. However, it should have been vocalized with a sheva and a pattach. It was so vocalized because the mem has a sheva na beneath it and two sheva nas are never joined together. (2) [WOULD THAT.] Mi yitten (would that) is an expression of desire here. It is like saying, who will grant me this request and desire?

Ibn Ezra is especially useful for Hebrew grammar. He reads וְהֵמָּה בַּכְּתֻבִים as meaning that they were among those recorded “at first.” He discusses הַנַּעַר מִבְּחֻרָיו, and the vocalization of כְּלָאֵם.
Most importantly, he explains מִי יִתֵּן as an idiom of desire: “Who will grant me this request and desire?” Moses’ statement is therefore not a prediction but an optative wish.
Ramban: prophecy, authority, and the presence of the master

(א)אֲדֹנִי מֹשֶׁה כְּלָאֵם – הַטַּעַם בָּזֶה, כִּי מֹשֶׁה דִּבֵּר אֶל הָעָם אֶת דִּבְרֵי יהוה, כִּי הוּא יֶאֱצֹל מִן הָרוּחַ אֲשֶׁר עָלָיו וְיִתֵּן עַל הַמִּתְיַצְּבִים עִמּוֹ בְּאֹהֶל מוֹעֵד. וְהִנֵּה אֵלֶּה אֲשֶׁר לֹא יָצְאוּ אֶל הָאֹהֶל וְעוֹשִׂים עַצְמָן מִכְּלַל הַנֶּאֱצָלִים, כְּמַמְרִים בִּדְבָרָיו, וְלָכֵן אָמַר לוֹ כְּלָאֵם, כִּי אוּלַי רוּחַ שֶׁקֶר בְּפִיהֶם אוֹ רוּחַ רָעָה מְבַעֲתָם, וְהִנֵּה צְרִיכִין לְשׂוּמָם בְּבֵית הַכֶּלֶא כְּאִישׁ מְשֻׁגָּע וּמִתְנַבֵּא. וּמֹשֶׁה בְּעַנְוְתָנוּתוֹ הֵשִׁיב: ״וּמִי יִתֵּן כָּל עַם יהוה נְבִיאִים כִּי יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם״, כִּי הַשֵּׁם נָתַן עֲלֵיהֶם רוּחוֹ מִבִּלְתִּי אֲצִילוּת הָרוּחַ שֶׁעָלַי, וּמִי יִתֵּן וְיִהְיֶה זֶה בְּכָל הָעָם. אֲבָל מִדִּבְרֵי רַבּוֹתֵינוּ נִרְאֶה כִּי הָיָה הַמִּנְהָג בְּיִשְׂרָאֵל שֶׁלֹּא יִתְנַבֵּא אָדָם בַּעֲתִידוֹת בִּמְקוֹם נָבִיא גָּדוֹל מִמֶּנּוּ, אֲבָל הוֹלְכִים אַחֲרָיו כְּתַלְמִידָיו וְהֵם בְּנֵי הַנְּבִיאִים. כָּךְ אָמְרוּ בְּסַנְהֶדְרִין (י״ז): בִּשְׁלָמָא לְמַאן דְּאָמַר "מֹשֶׁה מֵת" הַיְינוּ דְּקָאָמַר יְהוֹשֻׁעַ "אֲדֹנִי מֹשֶׁה כְּלָאֵם", אֶלָּא לְמַאן דְּאָמַר עַל עִסְקֵי שְׂלָיו אַמַּאי "כְּלָאֵם"? דַּהֲוָה לֵיהּ כְּמוֹרֶה הֲלָכָה לִפְנֵי רַבּוֹ. וְכֵן לְמַאן דְּאָמַר עַל גּוֹג וּמָגוֹג נִתְנַבְּאוּ. וְכָךְ הִזְכִּירוּ עוֹד בְּעִנְיַן דְּבוֹרָה בְּמַסֶּכֶת מְגִלָּה (י״ד). וּמֹשֶׁה אָמַר כִּי הוּא הָרַב וּמָחַל עַל כְּבוֹדוֹ וּמִתְאַוֶּה וְשָׂמֵחַ בְּכָךְ. וּבְתַרְגּוּם יְרוּשַׁלְמִי רָאִיתִי שֶׁאָמַר ״כְּלָאֵם" - "מְנַע מִנְּהוֹן רוּחַ קֻדְשָׁא״. עֲשָׂאוֹ מִלְּשׁוֹן ״הִנֵּה שְׂפָתַי לֹא אֶכְלָא״ (תהלים מ', י'), ״לֹא תִכְלָא רַחֲמֶיךָ מִמֶּנִּי״ (שם פסוק י״ב). וְטַעַם הָעִנְיָן, כִּי חָשַׁב יְהוֹשֻׁעַ מִפְּנֵי שֶׁהֵם בַּכְּתוּבִים הֵם מִתְנַבְּאִים, כִּי נֶאֱצַל רוּחַ מֹשֶׁה עַל כָּל הַכְּתוּבִים שֶׁעַל כֻּלָּם נִתְכַּוֵּן, וְלָכֵן אָמַר לוֹ אֵין נָכוֹן שֶׁיִּתְנַבְּאוּ הֵם בַּמַּחֲנֶה שֶׁלֹּא הֵקִימוּ דְּבַר יהוה שֶׁצִּוָּה ״וְלָקַחְתָּ אוֹתָם אֶל אֹהֶל מוֹעֵד וְהִתְיַצְּבוּ שָׁם עִמָּךְ״ (במדבר י״א:ט״ז), וְהִנֵּה יֵרָאֶה שֶׁאֵין נְבוּאַת כֻּלָּם מֵאֲצִילוּת הָרוּחַ אֲשֶׁר עָלֶיךָ, וְרָאוּי לַאֲדוֹנִי לְהִתְכַּוֵּן בְּרוּחַ הָאֱלֹהִים לַהֲשִׁיבוֹ אֵלֶיךָ, לְבַל יֵאָצֵל מִמְּךָ רַק לָעוֹמְדִים לְפָנֶיךָ בִּדְבַר יהוה, כִּי בַּעֲבוּר שֶׁנִּתְכַּוַּנְתָּ מִתְּחִלָּה עַל כָּל הַכְּתוּבִים הָיָה מֵהוֹדְךָ עֲלֵיהֶם, וְאִם תִּתְכַּוֵּן עַתָּה לַהֲשִׁיבָה מֵהֶם תָּנוּחַ אֶל הָעוֹמְדִים לְפָנֶיךָ בִּלְבַד כִּדְבַר יהוה. וּמֹשֶׁה אָמַר שֶׁלֹּא יְקַנֵּא לוֹ כִּי הוּא חָפֵץ שֶׁיִּתְנַבְּאוּ לְפָנָיו אוֹ שֶׁלֹּא בְּפָנָיו, כֵּיוָן שֶׁנָּתַן יהוה רוּחוֹ עֲלֵיהֶם בַּאֲצִילוּתוֹ מִמֹּשֶׁה אוֹ בִּלְתִּי אֲצִילוּת מִמֶּנּוּ:

(1) MY LORD MOSES, ‘K’LA’EIM’ (SHUT THEM IN). The meaning of this is that Moses had told the people the words of G-d, that He would take of the spirit which was upon him and put it upon those that will stand with him in the Tent of Meeting. Now those that did not go to the Tent [i.e., Eldad and Medad who had also been designated for that honor], and yet held themselves to be among those upon whom Moses’ spirit had been put [by prophesying in the camp, as Eldad and Medad did], were as rebels against Moses’ words. Therefore Joshua said to Moses, “Shut them in, for perhaps it is a lying spirit in their mouths, or it is an evil spirit that terrifies them, and thus they must be put in a prison like a man that is mad, and maketh himself like a prophet.” But Moses in his humility answered: “Would that all the people of the Eternal were prophets, that the Eternal would give His spirit upon them! — for G-d put His spirit directly upon them without taking of the spirit which was upon me, and would that this would happen to all the people.”
However, from the words of our Rabbis it appears that the custom in Israel was that no one would prophesy about future events in the presence of a prophet who is greater than him, but they would follow him as his disciples, and these were the sons of the prophets. Thus the Rabbis have said in Tractate Sanhedrin [with reference to the prophecy of Eldad and Medad]: “We can well understand according to that Sage who said that [Eldad and Medad prophesied that] ‘Moses will die [before entering the Land],’ that Joshua therefore said, My lord Moses, shut them in [since he wished to save Moses from grief]. But according to the Sage who said that [they prophesied] about the quails [that they would come from the sea], why should they be shut in [and not prophesy]? It is because the case resembled that of a pupil who renders a decision in the presence of his master.” Similarly [this was the reason why they were forbidden to prophesy] according to the Sage who says that they prophesied about Gog and Magog. And the Rabbis have mentioned a similar case in Tractate Megillah in the matter of Deborah. But Moses said that he, being the master, foregoes the honor due to him [and the law is that a Rabbi is able to renounce the honor due to him], and he desires and is happy [that they prophesy]. And I have seen that the Targum Yerushalmi rendered: “k’la’eim — withhold from them the Holy Spirit.” The Targum thus understood the word k’la’eim to be like the expressions: Behold, ‘lo echla’ (I did not refrain) my lips;‘lo thichla’ (Thou wilt not withhold) Thy compassions from me.
Now the reason for this matter is that Joshua thought that [Eldad and Medad] were prophesying because they were of them that were recorded [among the prescribed number of seventy men that were to join Moses], because the spirit of Moses was transmitted to all that were recorded, for he intended that all [seventy of them should become prophets]. Therefore Joshua said to Moses: “It is not fitting that they [Eldad and Medad] should prophesy in the camp, since they did not fulfill the word of G-d who commanded: and thou [Moses] shalt bring them unto the Tent of Meeting, that they may stand there with thee, and thus it might appear that not all of them prophesied through His putting of the spirit which was upon you [on them]. It is therefore fitting for my lord to direct your mind towards the spirit of G-d [which is upon you] and to bring it [completely] back to you, so that it should not be taken from you except for those who stand before you in accordance with the word of G-d. For it was because you intended at first that all who were recorded [should be prophets] that some of your glory came upon them, and if you will now intend to withdraw it from them, it will come to rest only upon those who stand before you in accordance with the word of G-d.” But Moses answered [Joshua by saying] that he should not be zealous for his sake, for he wishes that they prophesy whether in his presence or outside it, since G-d had put His spirit upon them — either by transmission from Moses or [directly from G-d] without such a transmission.

Ramban reads Joshua’s concern as institutional and theological. Since the elders were supposed to stand with Moses at the Tent of Meeting, Eldad and Medad’s prophecy in the camp could look like rebellion against Moses’ words or unauthorized prophecy.
Ramban also connects the issue to the rule that one should not prophesy or teach in the presence of a greater master. Moses’ response shows that he waives his honor and rejoices in their prophecy.
Sforno: direct prophecy without Moses’ mediation

(א)אֲדֹנִי מֹשֶׁה כְּלָאֵם. שֶׁחָשַׁב שֶׁלֹּא יָצְאוּ הָאֹהֱלָה לְהַרְאוֹת שֶׁיִּתְנַבְּאוּ בִּלְתִּי אֲצִילוּת מִמֹּשֶׁה רַבֵּינוּ. (א)כִּי יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם. בִּלְתִּי אֲצִילוּת מֵאִתִּי.

(1) אדוני משה כלאם!, he thought that the reason why these two men had not come to the tent of Meeting was because they wanted to demonstrate that they could prophesy without being within the spiritual sphere and physical presence of Moses. (1) כי יתן יהוה את רוחו עליהם, without any spiritual radiation emanating from me.

Sforno reads Joshua’s concern as follows: Eldad and Medad appeared to be showing that they could prophesy without receiving prophetic emanation from Moses.
Moses’ reply counters this concern. He desires that YHWH place his spirit upon the people directly, בִּלְתִּי אֲצִילוּת מֵאִתִּי, “without emanation from me.”
Chizkuni: why Eldad and Medad are named

(א)וישארו שני אנשים היתרים על השבעים. (ב)שם האחד אלדד ושם השני מידד. הזקנים לא נתפרשו שמותם ואלו נתפרשו שמותם לפי שהזקנים נפסקה נבואתם שהיתה משל משה שכך אמר הקב״‎ה ואצלתי מן הרוח אשר עליך אבל אלו נבואתם היתה מאת הקב״‎ה כדכתיב ותנח עליהם הרוח וגו'. (ג)ותנח עליהם הרוח. אע״‎פ שלא נבחרו בכלל השבעים הואיל והיו ראויים לכך לא הוכלמו ושרתה עליהם הרוח ונתנבאו. (ד)והמה בכתבים פרש״‎י נטל ע״‎ב פתקין וכתב על שבעים זקן ועל שנים חלק. וא״‎ת הרי קנאה גדולה מוטלת בדבר שיוכלו האחרונים לומר שמי שיטלו תחלה מסברא יעלה ביד כל אחד פתק זקן ולפי שהפתקין של זקן יתרים על הפתקין של חלק, אלא י״‎ל כמו כן מסברא זו השבעים ראשונים יכולים לומר שמא השנים פתקין של חלק יגיעו לידינו מתוך שאנחנו הרוב קודם שיגיעו ליד השנים האחרונים ע״‎י שהם המיעוט ונמצא שאין יתרון לזה מזה. (ה)ולא יצאו האהלה לא יצאו ממחנה ישראל אל אהל מועד עם האחרים. (ו)ויתנבאו במחנה ועל מי היו מתנבאים על גוג ויחזקאל רמז נבואתם כדכתיב כה אמר ה׳‎ האתה הוא אשר דברתי בימים קדמונים ביד הנבאים שנים אל תקרי שנים אלא שנים. (א)מבחריו מנעוריו לשון בימי בחורותיך. ד״‎א מן המובחרים לשרת את משה כי אחרים היו עמו. (ב)אדני משה כלאם בבית ולא יתנבאו במחנה שהרי האחרים שנתן להם רשות מתנבאים בהצנע כדכתיב ולקחת אותם אל אוהל מועד והתיצבו שם עמך והללו לא נטלו רשות ממך ומתנבאים חוץ לאוהל מועד. (א)ומי יתן כל עם ה׳‎ נביאים הן במחנה הן באוהל מועד להקל מעלי. (ב)כי יתן ה׳‎ את רוחו עליהם. ולא מרוחי שמה שאמר הקב״‎ה לתת מרוחי היינו על שבעים זקנים אבל יותר אינן מתנבאים מרוחי אלא מרוחו של הקב״‎ה הלואי שיהיו כולם מתנבאים בענין זה.

(1) .וישארו שני אנשים, there were two men in addition to the seventy men. (Moses had put 72 pieces of parchment in an urn, 6 for each tribe, of which two bore no inscription so that the men drawing those would know they were not part of the seventy elders). In other words: “they were redundant.” (2) שם האחד אלדד ושם השני מידד, “one of these two men was called Eldod, and the other was called Meydod.” The seventy elders were never mentioned by name whereas these two men who at first glance appeared as rejects, were named. The reason is that the prophetic spirit bestowed on the seventy elders ceased when Moses died, whereas the prophetic powers granted to these men survived Moses, as their prophetic powers was not a branch of Moses’ holy spirit. G-d Himself had said that He would give some of Moses’ spirit to these 70 elders (verse 17) The two named men received their prophetic spirit from G-d directly, as stated in our verse with the words: ותנח עליהם הרוח, “and the spirit rested upon them.” (3) ותנח עליהם הרוח, although these men had not been chosen to become part of the seventy elders, seeing that they were fit to have been elders and they did not feel humbled or rejected by not being chosen, they were rewarded by being given greater and longer lasting prophetic insights that the seventy whose parchment had read: “elder.” (4) והמה בכתובים, “they were amongst the seventy who had not drawn blanks.” According to Rashi this means that they had been included in the seventy two parchments on 70 of which Moses had written the word: “elder” and two of which he had left blank. If you were to ask that this method would have resulted in a great deal of jealousy by the ones who had not drawn a parchment with the word “elder,” it is therefore more reasonable to suppose that those who took parchments out of the urn early on would argue that they had a better chance not to draw a blank as 70 out of 72 were not blanks. Each one pushed in order not to be one of the last two whose chance of drawing a blank was so much greater. This was faulty reasoning, as the chance that the blanks would be drawn by the “early birds” was just as great as the reverse, and in fact, as soon as the blanks had been drawn the remaining candidates already knew for certain that they could not draw a blank. [It is therefore more likely that the Torah wishes us to know that in order to avoid jealousy, these two men decided to withdraw out of humility, so that the other 70 could all become elders. Ed.] They accomplished this by not showing up at the entrance to the Tabernacle as the men who drew parchments with the word: “elder” had been told to do. (5) ולא יצאו האהלה, “but they had not gone out to the Tabernacle’s entrance;” they had not left the general camp to follow the other elders to the Tabernacle with their colleagues. (6) ויתנבאו במחנה, ‘they prophesied inside the camp of the Israelites. Concerning what subject did these two men make prophetic announcements? They prophesied concerning the eventual war against Gog, and concerning the prophet Ezekiel. We find a hint of the subject of their prophecies in Ezekiel 38,17: כה אמר יהוה האתה הוא אשר דברתי בימים קדמונים ביד הנביאים שנים, “you are the one I spoke of in ancient times through My servants the prophets of Israel, who prophesied in those years about you and about Gog;” instead of reading the word שנים to mean: ”years,” understand it to mean: “שניים, two.” (1) מבחוריו, “from his early youth.” We find this word having this meaning also in Kohelet 12,1: בימי בחורתיך, “in the days of your youth.”An alternate interpretation of this word: “from amongst the choicest to serve Moses,” for there were others with him. (Ibn Ezra) (2) אדוני משה כלאם, “my lord Moses lock them up!” Joshua wanted these two men put under house arrest so that their prophecies would not become public. The other seventy men who had also displayed prophetic insights had done so only in the relative privacy of the sacred precincts of the Tabernacle which was out of bounds to the people at large. They had done so only in the presence of Moses. (verse 16) Eldod and Meydod had not asked for permission to prophesy publicly, and had prophesied outside the sacred precincts. (1) וכי יתן כל עם יהוה נביאים, “would that all the Lord’s people were prophets!” Moses did not care if they would prophesy in the camp or only in the sacred precincts around the Tabernacle, as long as they would make his task easier to accomplish. (2) כי יתן יהוה את רוחו עליהם, “as long as G-d directly would bestow His holy spirit upon them!” He wanted them to receive holy spirit from G-d directly, not only as a part of the holy spirit that had been bestowed upon him. He realised that the seventy men had received only part of the Holy spirit that he had been endowed with, and that this Holy spirit would vanish as soon as he would die. He therefore prayed that they would receive permanent Holy spirit.

Chizkuni asks why Eldad and Medad are named while the seventy elders are not. His answer is theological: the elders’ prophecy came from Moses’ spirit and ceased, but Eldad and Medad received prophecy directly from God, and therefore their prophetic gift was greater and longer-lasting.
Chizkuni also explains Moses’ wish as a desire that all Israel receive spirit directly from God, not merely from Moses’ spirit.
Onkelos: “spirit” as prophetic spirit

(כט) וַאֲמַר לֵיהּ משֶׁה הֲקִנְאָתִי אַתְּ מְקַנֵּי לִי רְעֵינָא פוֹן דִּיהוֹן כָּל עַמָּא דַיְיָ נְבִיאָין אֲרֵי יִתֵּן יהוה יָת רוּחַ נְבוּאֲתֵיהּ עֲלֵיהוֹן:

(29) Moshe said to him, “Are you vengeful for me? Would (that) it be that all Adonoy’s people were prophets, that Adonoy would give His Spirit upon them.”

Onkelos clarifies Hebrew רוּחַ by rendering it as רוּחַ נְבוּאֲתֵיהּ, “the spirit of His prophecy.” This targumic rendering narrows the meaning of spirit in Numbers 11:29 to explicitly prophetic spirit.
Targum Jonathan: expanded prophetic contents

(כו) וְאִשְׁתְּיָירוּ תְּרֵין גוּבְרִין בְּמַשְׁרִיתָא שְׁמֵיהּ דְחָד אֶלְדָד וּשְׁמֵיהּ דְתִנְיַין מֵידָד בְּנוֹי דְאֶלְצָפָן בַּר פַּרְנָךְ דִילֵידַת לֵיהּ יוֹכֶבֶד בְּרַת לֵוִי בִּזְמַן דְפַּטְרָהּ עַמְרָם גַבְרָהּ וְאִתְנְסִיבַת לֵיהּ עַד דְלָא יְלֵידַת יַת משֶׁה וּשְׁרַת עֲלֵיהוֹן רוּחַ נְבוּאָה אֶלְדָד הֲוָה מִתְנַבֵּי וַאֲמַר הָא משֶׁה מִתְכְּנִישׁ מִן עַלְמָא וִיהוֹשֻׁע בַּר נוּן מְשַׁמֵשׁ מַשְׁרִיתָא קָאִי מִן בַּתְרֵיהּ וּמְדַבֵּר עַמָא בֵּית יִשְרָאֵל וּמֵיעַל יַתְהוֹן לְאַרַע כְּנַעֲנָאֵי וּמַחֲסִין יָתָהּ לְהוֹן מֵידָד הֲוָה מִתְנַבֵּי וַאֲמַר הָא סִלְוֵי סַלְקִין מִן יַמָא וְחַפְיָין כָּל מַשְׁרִיתָא דְיִשְרָאֵל וְיֶהֱוֵי לְעַמָא לְתוּקְלָא בְּרַם תְּרֵיהוֹן כַּחֲדָא מִתְנַבִּין וְאָמְרִין הָא מַלְכָּא סְלִיק מִן אַרְעָא דְמָגוֹג בְּסוֹף יוֹמַיָא וּמַכְנַשׁ מַלְכִין קִטְרֵי תַגִין וְאַפַרְכִין לוֹבְשֵׁי שִרְיוֹנִין וְכָל עַמְמַיָא יִשְׁתַּמְעוּן לֵיהּ וּמְסַדְרִין קְרָבָא בְּאַרְעָא דְיִשְרָאֵל עַל בְּנֵי גַלְוָתָא בְּרַם קִירִיס אִיטִימוֹס לְהוֹן בְּשַׁעַת אֲנִיקִין וּמִקְטַל כֻּלְהוֹן בִּיקִידַת נִשְׁמָתָא בְּשַׁלְהוֹבִית אֵשָׁתָא דְנַפְקָא מִתְּחוֹת כּוּרְסֵי יְקָרָא וְנָפְלִין פִּגְרֵיהוֹן עַל טַוְורַיָא דְאַרְעָא דְיִשְרָאֵל וְיֵיתוּן כָּל חֵיוַת בָּרָא וְצִיפְרֵי שְׁמַיָא וְיֵיכְלוּן גוּשְׁמֵיהוֹן וּמִבָּתַר כְּדֵין יֵיחוֹן כָּל מֵתַיָא דְיִשְרָאֵל וְיִתְפַּנְקוּן מִן טַוְורָא דְאִצְטְנַע לְהוֹן מִן שֵׁירוּיָא וִיקַבְּלוּן אֲגַר עוֹבָדֵיהוֹן וְהִינוּן הֲווֹן מִן סָבַיָא דִסְלִיקוּ בִּפְטִיקַיָא כְּתוֹבַיָא וְלָא נַפְקָן לְמַשְׁכְּנָא דְאִיטַמָרוּ לְמֵעֲרוֹק מִן רַבָּנוּתָא וְאִתְנַבִּיאוּ בְּמַשְׁרִיתָא (כז) וּרְהַט טַלְיָא חַד וּתְנֵי לְמשֶׁה וַאֲמַר אֶלְדָד וּמֵידָד מִתְנַבְּיָין הָכֵין בְּמַשְׁרִיתָא (כח) וְאָתֵיב יְהוֹשֻׁעַ בַּר נוּן מְשׁוּמְשָׁנֵיהּ דְמשֶׁה וַאֲמַר רִבּוֹנִי משֶׁה בָּעֵי רַחֲמִין מִן קֳדָם יהוה וּכְלִי מִנְהוֹן רוּחַ נְבוּאָתָא (כט) וַאֲמַר לֵיהּ משֶׁה הֲמִן בִּגְלַל דְאִתְנַבּוּ עָלַי דַאֲנָא מִתְכְּנַשׁ מִן עַלְמָא וְאַנְתְּ מְשַׁמֵשׁ מִן בַּתְרַיי אַנְתְּ מְקַנֵי לִי רְעֵינָא פּוֹן דִיהוֹן כָּל עַמָא דַיְיָ נְבִייָן אֲרוּם יִתֵּן יהוה יַת רוּחַ נְבִיאוּתֵיהּ עֲלֵיהוֹן

(26) But two men had remained in the camp; the name of the one Eldad, and the name of the second Medad, the sons of Elizaphan bar Parnak, whom Jokebed the daughter of Levi bare to him when Amram her husband had put her away; and to whom she had been espoused before she gave birth to Mosheh. And the Spirit of prophecy resting upon them, Eldad prophe­sied, and said: Behold, Mosheh shall be gathered from the world; and Jehoshua bar Nun, the minister of the camps, will be established after him, and will lead the people of the house of Israel into the land of Kenaan, and make it their inheritance. Medad prophesied, and said: Behold, quails come up from the sea, and cover all the camp of Israel; but they will be to the people (a cause of) an offence. And both of them prophesied together, and said: Behold, a king will arise from the land of Magog, at the end of the days, and will assemble kings crowned with crowns, and captains wearing armour, and him will all nations obey. And they will set battle in array in the land of Israel against the children of the captivity; but already is it provided that in the hour of distresses all of them shall perish by the burning blast of the flame that cometh forth from beneath the Throne of Glory; and their carcases shall fall upon the mountains of the land of Israel, and the wild beasts of the field and the fowls of the sky shall come and consume their dead bodies. And afterward will all the dead of Israel live (again), and be feasted from the ox which hath been set apart for them from the beginning, and they shall receive the reward of their works. And they were of the elders who stood in the registers among them; but they had not gone forth to the tabernacle, but had hidden to escape from the dignity; yet they prophesied in the camp. (27) And a certain young man ran, and told to Mosheh, and said: Eldad and Medad are prophesying thus in the camp. (28) And Jehoshua bar Nun, the minister of Mosheh, answered and said: Ribboni Mosheh, pray for mercy before the Lord, that the Spirit of prophecy may be withheld from them. (29) But Mosheh said to him, Because they prophesy concerning me that I am to be gathered from the world, and that thou art to minister after me, art thou jealous for my sake? I would that all the Lord's people were prophets, and that He would bestow the Spirit of prophecy upon them.

Targum Jonathan greatly expands the brief biblical account. Eldad prophesies Moses’ death and Joshua’s succession. Medad prophesies the quail. Both together prophesy Gog and Magog, eschatological judgment, resurrection, and final reward.
This source shows how the terse Hebrew phrase מִתְנַבְּאִים בַּמַּחֲנֶה became a reception-history opening for succession, wilderness judgment, and eschatology.
Kli Yakar: jealousy, mediation, and direct divine spirit

(א)הַמְקַנֵּא אַתָּה לִי וְגוֹ׳. יְהוֹשֻׁעַ לְפִי שֶׁהָיָה בָּחוּר בַּיָּמִים אָחַז בְּמִדַּת הַקִּנְאָה, כְּמוֹ שֶׁכָּתוּב ״וַיַּעַן יְהוֹשֻׁעַ בִּן נוּן מְשָׁרֵת מֹשֶׁה מִבְּחֻרָיו״, מִצַּד הֱיוֹתוֹ מִבְּחֻרָיו אָמַר כֵּן. וְאִלּוּ הָיָה זָקֵן בָּא בַּיָּמִים לֹא הָיָה מַקְפִּיד עַל הִשְׁתָּרֵר שְׁנֵי רֵעִים כְּאֶחָד. וְעַל כָּךְ אָמְרוּ (ב״ב עה.) פְּנֵי מֹשֶׁה כִּפְנֵי חַמָּה וִיהוֹשֻׁעַ כַּלְּבָנָה. כִּי כְּמוֹ שֶׁקִּטְרְגָה הַלְּבָנָה וְאָמְרָה: אִי אֶפְשָׁר לִשְׁנֵי מְלָכִים שֶׁיִּשְׁתַּמְּשׁוּ בְּכֶתֶר אֶחָד, כָּךְ יְהוֹשֻׁעַ הָיָה מְקַטְרֵג וְאָמַר: אֶלְדָּד וּמֵידָד מִתְנַבְּאִים. אֲבָל מֹשֶׁה הָיָה כַּחַמָּה שֶׁלֹּא קִטְרְגָה כְּלוּם, כָּךְ מֹשֶׁה אָמַר: מִי יִתֵּן וְהָיָה כָל עַם יהוה נְבִיאִים. (ב) וְאָמַר כִּי יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם. פֵּרֵשׁ בָּעֲקֵדָה, פְּשִׁיטָא אִם יִהְיוּ מָאֳצָלִים מִן הָרוּחַ אֲשֶׁר עָלַי שֶׁלֹּא אֶתְקַנֵּא בָּהֶם, כִּי בְּכָל אָדָם מִתְקַנֵּא חוּץ מִבְּנוֹ וְתַלְמִידוֹ (סנהדרין קה:), אֶלָּא אֲפִלּוּ ״כִּי יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם״ וְלֹא יִהְיוּ תַּלְמִידַי, מִכָּל מָקוֹם לֹא אֶתְקַנֵּא בָּהֶם. וְיֵשׁ אוֹמְרִים שֶׁדַּוְקָא קָאָמַר, כִּי דַּוְקָא בִּזְמַן שֶׁיִּתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם יָכוֹל לִהְיוֹת שֶׁיִּהְיֶה כָּל עַם יהוה נְבִיאִים, אֲבָל אִם יֵאָצֵל עֲלֵיהֶם מִן הָרוּחַ אֲשֶׁר עָלַי אִי אֶפְשָׁר שֶׁיִּהְיוּ כֻּלָּם נְבִיאִים, כִּי הַמָּאֳצַל צָרִיךְ לִהְיוֹת דּוֹמֶה מִכָּל צַד אֶל הַמַּאֲצִיל. וְרַבּוֹתֵינוּ זִכְרוֹנָם לִבְרָכָה אָמְרוּ (נדרים לח.) אֵין הַשְּׁכִינָה שׁוֹרָה כִּי אִם עַל גִּבּוֹר חָכָם עָשִׁיר וְעָנָו, וְכֻלָּן בְּמֹשֶׁה. רָצוּ בָּזֶה מֵאַחַר שֶׁהָיוּ כֻּלָּם בְּמֹשֶׁה, עַל כֵּן צָרִיךְ לִהְיוֹת כִּי הַמָּאֳצַל מִמֶּנּוּ דּוֹמֶה אֵלָיו מִכָּל צַד. וְזֶה בִּלְתִּי אֶפְשָׁר שֶׁיִּהְיוּ כָּל יִשְׂרָאֵל שָׁוִים בְּכָל אַרְבַּע תְּאָרִים אֵלּוּ, דְּאִם כֵּן מַה גְּבַר מִגֻּבְרִין. אֲבָל אִם יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם בְּלֹא אֶמְצָעִי, אָז אֵין צֹרֶךְ בְּאַרְבַּע תְּאָרִים אֵלּוּ שֶׁיִּהְיוּ כֻּלָּם שָׁוִים בָּהֶם. וְאֵין לוֹמַר שֶׁיִּתְדַּמּוּ אֵלָיו כִּבְיָכוֹל, כִּי מַה דְּמוּת תַּעַרְכוּ לוֹ, עַל כֵּן נֶאֱמַר ״כִּי יִתֵּן יהוה אֶת רוּחוֹ עֲלֵיהֶם״.

(1)“Are you jealous for my sake, etc.” Joshua, because he was young in days, held onto the trait of jealousy, as it is written, And Joshua the son of Nun, Moses’ assistant from his youth, answered. Due to being one of his young men, he said this, whereas if he had been an elder, advanced in days, he would not have been concerned about two companions having authority together. And therefore they said (Bava Batra 75a): “The face of Moses was like the face of the sun, and Joshua like the moon.” For just as the moon complained and said, “It is impossible for two kings to use one crown,” so too Joshua complained and said, Eldad and Medad are prophesying. But Moses was like the sun that did not complain at all; thus Moses said, Would that all the Lord’s people were prophets. (2)And he said, “Would that the Lord might place His spirit upon them.” The Akeidah [commentary] explained: It’s obvious that if they were to receive from the spirit that is upon me, I would not be jealous of them, because a person is jealous of everyone except his son and his student (Sanhedrin 105b). Rather, even if the Lord were to place His spirit upon them directly and they would not be my students, nonetheless I would not be jealous of them. And some say that he [Moses] was being precise, because specifically when the Lord places His spirit upon them, it is possible that all the people of the Lord would be prophets, but if He were to emanate upon them from the spirit that is upon me, it would be impossible for all of them to be prophets. Because that which is emanated must resemble the emanator in every way, and our Sages said (Nedarim 38a) that the Divine Presence rests only upon one who is strong, wise, wealthy, and humble, and all these were in Moses. They meant by this that since all these qualities were in Moses, therefore it is necessary that whoever receives emanation from him must resemble him in every way, and this is impossible for all of Israel to be equal in all these four attributes. For if so, what makes one person greater than another? But if the Lord places His spirit upon them without an intermediary, then there is no need for all of them to be equal in these four attributes, and one cannot say that they must resemble Him, as it were, for how can anyone be compared to Him? Therefore it is said, if the Lord places His spirit upon them.

Kli Yakar contrasts Joshua and Moses. Joshua reacts with jealousy because he is still associated with youth; Moses is like the sun and is not threatened by others receiving prophecy.
Kli Yakar then makes a precise theological point: if prophecy comes from Moses’ spirit, only those resembling Moses can receive it. But if YHWH gives his spirit directly, then the possibility becomes broader. This reading depends on the wording כִּי יִתֵּן יהוה אֶת־רוּחוֹ עֲלֵיהֶם.
Rav Hirsch: no monopoly on spirit

(1) V. 29. המקנא אתה לי, nimmst du dich meines Rechtes an? Hältst du in Eldads und Medads Auftreten mein Recht verletzt, und glaubst mein Recht vertreten zu müssen? (siehe zu Kap. 5, 14). (2) Dieses Auftreten Eldads und Medads im Momente der Berufung der Ältesten zum ersten Sanhedrin und Mosche Äußerungen sind von höchster Bedeutsamkeit für alle Nachfolger dieses jüdischen "Ältestenkollegiums" für alle Zeit. Es ist damit bekundet, daß mit der Einsetzung der höchsten geistigen Behörde in Israel kein Monopol des Geistes gestiftet werden sollte, daß die geistige Begabung von Gott durch keinerlei Amt und Beruf bedingt sei und der letzte im Volke ebenso des Anteils am Gottesgeiste gewürdigt werden könne, wie der erste im höchsten Amte. Mosche Äußerung bleibt aber für alle zur Lehre und Leitung Berufenen in Israel das ewig vorleuchtende Muster, daß sie als höchstes Ideal ihrer Wirksamkeit das Ziel vor Augen haben sollen: sich überflüssig im Volke zu machen, daß das Volk zu einer solchen geistigen Höhe in allen seinen Schichten gelange, daß es der Lehrer und Leiter nicht mehr bedürfe! Und wohl haben die Nachfolger dieser "Ältesten" den Geist ihres Mosche geerbt, haben es als ihre höchste Aufgabe erkannt: להרביץ תורה בישראל, der Erkenntnis des göttlichen Gesetzes die breiteste Basis im Volke zu bereiten, und haben ihr: והעמידו תלמידים הרבה, als erste Maxime für alle geistigen Führer ihres Volkes hinausgegeben. Mit dem "המקנא אתה לי!?" hat unser Mosche der Scheidewand zwischen "Geistlichkeit" und "Laien" im wahren Israel für immer den Boden entzogen. — Sanhedrin 17a werden verschiedene Meinungen über den Inhalt der von Eldad und Medad gesprochenen Prophetie geäußert. Nach der einen habe sie das bevorstehende Wachtelereignis betroffen. Eine andere gibt deren Inhalt also an: משה מת יהושע מכניס ישראל לארץ und endlich eine dritte spricht sich dahin aus: על עסקי גוג ומגוג היו מתנבאין, sie hätten von den letzten Gog- und Magogkämpfen prophezeit, die nach Ezechiel und Secharja die Schlussentwicklung der Geschichte der Zeiten bilden und von denen es Ezechiel 38, 17 heißt: האתה הוא אשר דברתי בימים קדמונים ביד עבדי נביאי ישראל הנבאים בימים ההם שנים להביא אותך עליהם, bist du der, vom dem ich bereits in Tagen der Vorzeit durch meine Diener, die Propheten Israels, gesprochen, welche in jenen Tagen auf Jahre hinaus prophezeiten? In diesen gleichzeitig auf Jahre hinaus prophezeienden Männern wurden Eldad und Medad erblickt. Wir haben an einer anderen Stelle den Gedanken entwickelt, wie in גוג ומגוג das גג-Prinzip, das "Giebelprinzip", das Prinzip der Konzentrierung aller Leitung in der gipfelnden Spitze in seiner äußersten Konsequenz zum Ausdruck gelangt, dem gegenüber daher nach dessen Überwindung die siegreiche Stadt der Menschengestaltung המונה "die Volkstümliche" genannt wird (Ezech. 39, 16). Ist an diesem Gedanken etwas Wahres, so dürfte es nicht wenig bezeichnend sein, wenn der Hinblick auf diesen fernsten Sieg des Volkstümlichen, über dessen Gog- und Magoggegensatz, oder das Näherliegende, die Verkündigung von Mosches Tode und Josuas Führerschaft als Inhalt der Prophetien Eldads und Medads begriffen werden. Es wäre dann der Mund der bescheidensten, aus Bescheidenheit vom zuerkannten einflussreichen Beruf einer Volksleitung zurück, und lieber במחנה, in Mitte des Volkes gebliebenen Männer der Verkündung der idealsten volkstümlichen Zukunft gewürdigt worden, wo nicht im "אהל" sondern im "מחנה", nicht im "גוג מגוג", sondern im "המון" der Schwerpunkt des sozialen Weltheiles liegen wird, oder eines Faktums, das, wie der Tod Mosche und die Vollendung des nationalen Geschickes unter Josua, die Wahrheit veranschaulicht, daß kein Mensch, nicht einmal ein Mosche, sich für unentbehrlich halten oder von seinen Zeitgenossen als unentbehrlich gehalten werden dürfte. Mosche stirbt — und das Geschick der Nation geht doch in Erfüllung. —

Rav Hirsch reads the episode as a rejection of spiritual monopoly. The appointment of the elders does not mean that office controls divine spirit. Eldad and Medad show that spiritual gifts are not bound to rank, office, or institution.
For Hirsch, Moses’ statement becomes a principle for Israel’s teachers and leaders: their highest aim is not to preserve their own indispensability, but to raise the whole people spiritually.
Tomer Devorah: Moses’ wish as ethical model

(כג) הַשֵּׁנִי - יַרְגִּיל עַצְמוֹ לְהַכְנִיס אַהֲבַת בְּנֵי אָדָם בְּלִבּוֹ, וַאֲפִילוּ הָרְשָׁעִים, כְּאִלּוּ הָיוּ אֶחָיו וְיֹתֵר מִזֶּה, עַד שֶׁיִּקְבַּע בְּלִבּוֹ אַהֲבַת בְּנֵי אָדָם כֻּלָּם, וַאֲפִלּוּ הָרְשָׁעִים יֶאֱהַב אֹתָם בְּלִבּוֹ, וְיֹאמַר, מִי יִתֵּן וְיִהְיוּ אֵלּוּ צַדִּיקִים שָׁבִים בִּתְשׁוּבָה וַיִּהְיוּ כֻּלָּם גְּדוֹלִים וּרְצוּיִים לַמָּקוֹם. כְּמַאֲמַר אוֹהֵב נֶאֱמָן לְכָל יִשְׂרָאֵל, אָמַר (בַּמִּדְבָּר יא, כט): "וּמִי יִתֵּן כָּל עַם יהוה נְבִיאִים וְגוֹ'", וּבַמֶּה יֶאֱהַב, בִּהְיוֹתוֹ מַזְכִּיר בְּמַחֲשַׁבְתּוֹ טוֹבוֹת אֲשֶׁר בָּהֶם, וִיכַסֶּה מוּמָם וְלֹא יִסְתַּכֵּל בְּנִגְעֵיהֶם אֶלָּא בַּמִּדּוֹת הַטּוֹבוֹת אֲשֶׁר בָּהֶם. וְיֹאמַר בְּלִבּוֹ, אִלּוּ הָיָה הֶעָנִי הַמָּאוּס הַזֶּה בַּעַל מָמוֹן רַב כַּמָּה הָיִיתִי שָׂמֵחַ בְּחֶבְרָתוֹ, כְּמוֹ שֶׁאֲנִי שָׂמֵחַ בְּחֶבְרַת פְּלוֹנִי. וַהֲרֵי זֶה, אִלּוּ יַלְבִּישׁוּהוּ הַלְּבוּשִׁים הַנָּאִים כְּמוֹ פְּלוֹנִי הֲרֵי אֵין בֵּינוֹ לְבֵינוֹ הֶבְדֵּל, אִם כֵּן לָמָּה יֵעָדֵר כְּבֹדוֹ בְּעֵינַי, וַהֲרֵי בְּעֵינֵי יהוה חָשׁוּב מִמֶּנִּי, שֶׁהוּא נָגוּעַ מְדֻכָּה עֹנִי וְיִסּוּרִים וּמְנֻקֶּה מֵעָוֹן, וְלָמָּה אֶשְׂנָא מִי שֶׁהַקָּדוֹשׁ בָּרוּךְ הוּא אוֹהֵב, וּבָזֶה יִהְיֶה לְבָבוֹ פֹּנֶה אֶל צַד הַטּוֹב וּמַרְגִּיל עַצְמוֹ לַחְשֹׁב בְּכָל מִדּוֹת טוֹבוֹת שֶׁזָּכַרְנוּ.

(23) The second: He [should] accustom himself to internalize the love of people into his heart - and even the evildoers - as if they were his brothers, and even more than this; until he fixes the love of all people into his heart. And he [should] even love the evildoers in his heart and say, "Who will give that they all be righteous penitents, and all be great ones and desirable to the Omnipresent," like the statement of the trusted friend of all of Israel. He stated (Numbers 11:29), "and who will give that all of the people of the Lord be prophets, etc?" And with what (how) will he love [them]? When he mentions in his thought the good [qualities] that they have and covers their blemish, and he not gaze at their scabs but rather at the good traits that they have. And he [should] say in his heart, "If this disgusting poor man was a man of much money, how happy I would be with his friendship - as I am with the friendship of x. And behold, if they would dress this one with nice clothes like x, behold there is no difference between them. If so, why [should] he lack honor in my eyes? And behold, in the eyes of God, he is more important than I - as he is stricken and downtrodden with poverty and afflictions, and [so] cleaned of iniquity. And why would I hate one that the Holy One, blessed be He, loves?" And through this, his heart will turn to the side of the good and accustom himself to think about all the good traits that we mentioned.

Tomer Devorah uses Moses’ מִי יִתֵּן as an ethical model. One should love even sinners and wish that they become righteous, repentant, great, and acceptable before God, just as Moses wished that all YHWH’s people were prophets.
Here Numbers 11:29 is no longer only about prophecy and authority; it becomes a model of generous spiritual desire for others.
Joel: wider outpouring of the spirit

(א) וְהָיָ֣ה אַחֲרֵי־כֵ֗ן אֶשְׁפּ֤וֹךְ אֶת־רוּחִי֙ עַל־כׇּל־בָּשָׂ֔ר וְנִבְּא֖וּ בְּנֵיכֶ֣ם וּבְנוֹתֵיכֶ֑ם זִקְנֵיכֶם֙ חֲלֹמ֣וֹת יַחֲלֹמ֔וּן בַּח֣וּרֵיכֶ֔ם חֶזְיֹנ֖וֹת יִרְאֽוּ׃ (ב) וְגַ֥ם עַל־הָעֲבָדִ֖ים וְעַל־הַשְּׁפָח֑וֹת בַּיָּמִ֣ים הָהֵ֔מָּה אֶשְׁפּ֖וֹךְ אֶת־רוּחִֽי׃

(1)After that,I will pour out My spirit on all flesh;Your sons and daughters shall prophesy;Your elders shall dream dreams,And your youths shall see visions.(2)I will even pour out My spiritUpon male and female slaves in those days.

Joel speaks of God pouring out his spirit on all flesh:
אֶשְׁפּוֹךְ אֶת־רוּחִי עַל־כׇּל־בָּשָׂר
Sons and daughters prophesy, elders dream, youths see visions, and even male and female slaves receive the spirit.
[Inference] Joel can be placed as a canonical resonance with Moses’ wish in Numbers 11:29. Moses desires that all YHWH’s people be prophets; Joel imagines a future in which divine spirit is distributed broadly across gender, age, and social status.
Closing Note
The reception history of Eldad and Medad shows that Numbers 11:24–30 is not merely a record about two unexpected prophets. It is a sustained interpretive problem about the location and mediation of divine רוח. Is spirit tied to Moses, to office, to the Tent, to authorized procedure, or directly to YHWH’s freedom to give? The Hebrew text leaves this tension open, and the Jewish interpretive tradition turns that openness into reflection on humility, leadership, prophecy, succession, eschatology, and love for the spiritual elevation of all Israel, and even being poured out over all flesh.