Who Are Your Descendants? Parashat Bamidbar 5779
(א) וְאֵ֛לֶּה תּוֹלְדֹ֥ת אַהֲרֹ֖ן וּמֹשֶׁ֑ה בְּי֗וֹם דִּבֶּ֧ר יְהוָ֛ה אֶת־מֹשֶׁ֖ה בְּהַ֥ר סִינָֽי׃ (ב) וְאֵ֛לֶּה שְׁמ֥וֹת בְּֽנֵי־אַהֲרֹ֖ן הַבְּכ֣וֹר ׀ נָדָ֑ב וַאֲבִיה֕וּא אֶלְעָזָ֖ר וְאִיתָמָֽר׃
(1) This is the line of Aaron and Moses at the time that the LORD spoke with Moses on Mount Sinai. (2) These were the names of Aaron’s sons: Nadab, the first-born, and Abihu, Eleazar and Ithamar;
(א) ואלה תולדת אהרן ומשה. וְאֵינוֹ מַזְכִּיר אֶלָּא בְנֵי אַהֲרֹן וְנִקְרְאוּ תוֹלְדוֹת מֹשֶׁה, לְפִי שֶׁלִּמְּדָן תּוֹרָה, מְלַמֵּד שֶׁכָּל הַמְלַמֵּד אֶת בֶּן חֲבֵרוֹ תּוֹרָה מַעֲלֶה עָלָיו הַכָּתוּב כְּאִלּוּ יְלָדוֹ (סנהדרין י"ט):
(1) ואלה תולדת אהרן ומשה AND THESE ARE THE OFFSPRING OF AARON AND MOSES — But it mentions only the sons of Aaron! But they also are called the sons of Moses because he taught them the Torah. This tells us that whoever teaches the Torah to the son of his fellow man Scripture regards it to him as though he had begotten him (Sanhedrin 19b).
ור' יהושע בן קרחה נמי הכתיב את חמשת בני מיכל בת שאול אמר לך רבי יהושע וכי מיכל ילדה והלא מירב ילדה מירב ילדה ומיכל גידלה לפיכך נקראו על שמה ללמדך שכל המגדל יתום בתוך ביתו מעלה עליו הכתוב כאילו ילדו:
The Gemara asks: And according to Rabbi Yehoshua ben Korḥa as well, isn’t it written: “And the five sons of Michal, daughter of Saul, whom she bore to Adriel” (II Samuel 21:8). Rabbi Yehoshua ben Korḥa could have said to you to understand it this way: And did Michal give birth to these children? But didn’t Merab give birth to them for Adriel? Rather, Merab gave birth to them and died, and Michal raised them in her house. Therefore, the children were called by her name, to teach you that with regard to anyone who raises an orphan in his house, the verse ascribes him credit as if he gave birth to him.
(ז) וְשִׁנַּנְתָּ֣ם לְבָנֶ֔יךָ וְדִבַּרְתָּ֖ בָּ֑ם בְּשִׁבְתְּךָ֤ בְּבֵיתֶ֙ךָ֙ וּבְלֶכְתְּךָ֣ בַדֶּ֔רֶךְ וּֽבְשָׁכְבְּךָ֖ וּבְקוּמֶֽךָ׃
(7) Impress them upon your children. Recite them when you stay at home and when you are away, when you lie down and when you get up.
(ב) לבניך. אֵלּוּ הַתַּלְמִידִים, מָצִינוּ בְּכָל מָקוֹם שֶׁהַתַּלְמִידִים קְרוּייִם בָּנִים, שֶׁנֶּאֱמַר (דברים י"ד) בָּנִים אַתֶּם לַה' אֱלֹהֵיכֶם, וְאוֹמֵר (מלכים ב ב') בְּנֵי הַנְּבִיאִים אֲשֶׁר בֵּית אֵל, וְכֵן בְּחִזְקִיָּהוּ, שֶׁלִּמֵּד תּוֹרָה לְכָל יִשְׂרָאֵל, וּקְרָאָם בָּנִים שֶׁנֶּאֱמַר (דברי הימים ב' כ"ט) בָּנַי עַתָּה אַל תִּשָּׁלוּ. וּכְשֵׁם שֶׁהַתַּלְמִידִים קְרוּיִים בָּנִים (שֶׁנֶּאֱמַר בָּנִים אַתֶּם לַה' אֱלֹהֵיכֶם) כָּךְ הָרַב קָרוּי אָב, שֶׁנֶּאֱמַר (מלכים ב ב') אָבִי אָבִי רֶכֶב יִשְׂרָאֵל וְגוֹ' (ספרי):
(2) לבניך [AND THOU SHALT TEACH THEM DILIGENTLY] UNTO THY CHILDREN — These are the disciples. Everywhere do we find that disciples are termed בנים, as it is said, (Deuteronomy 14:1) “Ye are children (בנים) of the Lord your God”; and it says, (2 Kings 2:3), “The sons of (בני) the prophets who were in Bethel”. So. too, do we find in the case of Hezekiah that he taught Torah to all Israel and termed them בנים, as it is said, (II Chronicles 29:11), “My sons (בני) be not now negligent". And even as disciples are termed בנים, “children", so the teacher is termed אב, "father", as it is said, (2 Kings 2:12) that Elisha referred to his teacher Elijah by the words, "My father, my father, the chariot of Israel, etc." (Sifrei Devarim 34:4).

(ג) הַלּוֹמֵד מֵחֲבֵרוֹ פֶּרֶק אֶחָד אוֹ הֲלָכָה אַחַת אוֹ פָסוּק אֶחָד אוֹ דִבּוּר אֶחָד אוֹ אֲפִלּוּ אוֹת אַחַת, צָרִיךְ לִנְהוֹג בּוֹ כָבוֹד, שֶׁכֵּן מָצִינוּ בְדָוִד מֶלֶךְ יִשְׂרָאֵל, שֶׁלֹּא לָמַד מֵאֲחִיתֹפֶל אֶלָּא שְׁנֵי דְבָרִים בִּלְבָד, קְרָאוֹ רַבּוֹ אַלּוּפוֹ וּמְיֻדָּעוֹ, שֶׁנֶּאֱמַר (תהלים נה) וְאַתָּה אֱנוֹשׁ כְּעֶרְכִּי אַלּוּפִי וּמְיֻדָּעִי. וַהֲלֹא דְבָרִים קַל וָחֹמֶר, וּמַה דָּוִד מֶלֶךְ יִשְׂרָאֵל, שֶׁלֹּא לָמַד מֵאֲחִיתֹפֶל אֶלָּא שְׁנֵי דְבָרִים בִּלְבַד קְרָאוֹ רַבּוֹ אַלּוּפוֹ וּמְיֻדָּעוֹ, הַלּוֹמֵד מֵחֲבֵרוֹ פֶּרֶק אֶחָד אוֹ הֲלָכָה אַחַת אוֹ פָסוּק אֶחָד אוֹ דִבּוּר אֶחָד אוֹ אֲפִלּוּ אוֹת אַחַת, עַל אַחַת כַּמָּה וְכַמָּה שֶׁצָּרִיךְ לִנְהוֹג בּוֹ כָבוֹד. וְאֵין כָּבוֹד אֶלָּא תוֹרָה, שֶׁנֶּאֱמַר (משלי ג) כָּבוֹד חֲכָמִים יִנְחָלוּ, (משלי כח) וּתְמִימִים יִנְחֲלוּ טוֹב, וְאֵין טוֹב אֶלָּא תוֹרָה, שֶׁנֶּאֱמַר (משלי ד) כִּי לֶקַח טוֹב נָתַתִּי לָכֶם תּוֹרָתִי אַל תַּעֲזֹבוּ:

(3) One who learns from his fellow one chapter, or one halakhah, or one verse, or one word, or even one letter, is obligated to treat him with honor; for so we find with David, king of Israel, who learned from Ahitophel no more than two things, yet called him his master, his guide and his beloved friend, as it is said, “But it was you, a man mine equal, my guide and my beloved friend” (Psalms 55:14). Is this not [an instance of the argument] “from the less to the greater” (kal vehomer)? If David, king of Israel who learned from Ahitophel no more than two things, nevertheless called him his master, his guide and his beloved friend; then in the case of one who learns from his fellow one chapter, or one halakhah, or one verse, or one word, or even one letter, all the more so he is under obligation to treat him with honor. And “honor’” means nothing but Torah, as it is said, “It is honor that sages inherit” (Proverbs 3:35). “And the perfect shall inherit good” (Proverbs 28:10), and “good” means nothing but Torah, as it is said, “For I give you good instruction; do not forsake my Torah” (Proverbs 4:2).

Shlomo Yitzchaki (Hebrew: רבי שלמה יצחקי‬‎) 22 February 1040 – 13 July 1105, today generally known by the acronym Rashi (Hebrew: רש"י‬, RAbbi SHlomo Itzhaki), was a medieval French rabbi and author of a comprehensive commentary on the Talmud and commentary on the Tanakh. Acclaimed for his ability to present the basic meaning of the text in a concise and lucid fashion, Rashi appeals to both learned scholars and beginner students, and his works remain a centerpiece of contemporary Jewish study.
https://en.m.wikipedia.org/wiki/Rashi

What factors beyond this text (both textual and historical) might have influenced Rashi to interpret these texts as he does?
What does it mean to 'teach Torah'?
How do you teach Torah in your own life? Do you see those you teach as your children/family/descendants?