Va'Yera with Rav Hirsch & Kdushat Levi

(א) וַיֵּרָ֤א אֵלָיו֙ יְהוָ֔ה בְּאֵלֹנֵ֖י מַמְרֵ֑א וְה֛וּא יֹשֵׁ֥ב פֶּֽתַח־הָאֹ֖הֶל כְּחֹ֥ם הַיּֽוֹם׃ (ב) וַיִּשָּׂ֤א עֵינָיו֙ וַיַּ֔רְא וְהִנֵּה֙ שְׁלֹשָׁ֣ה אֲנָשִׁ֔ים נִצָּבִ֖ים עָלָ֑יו וַיַּ֗רְא וַיָּ֤רָץ לִקְרָאתָם֙ מִפֶּ֣תַח הָאֹ֔הֶל וַיִּשְׁתַּ֖חוּ אָֽרְצָה׃ (ג) וַיֹּאמַ֑ר אֲדֹנָ֗י אִם־נָ֨א מָצָ֤אתִי חֵן֙ בְּעֵינֶ֔יךָ אַל־נָ֥א תַעֲבֹ֖ר מֵעַ֥ל עַבְדֶּֽךָ׃ (ד) יֻקַּֽח־נָ֣א מְעַט־מַ֔יִם וְרַחֲצ֖וּ רַגְלֵיכֶ֑ם וְהִֽשָּׁעֲנ֖וּ תַּ֥חַת הָעֵֽץ׃ (ה) וְאֶקְחָ֨ה פַת־לֶ֜חֶם וְסַעֲד֤וּ לִבְּכֶם֙ אַחַ֣ר תַּעֲבֹ֔רוּ כִּֽי־עַל־כֵּ֥ן עֲבַרְתֶּ֖ם עַֽל־עַבְדְּכֶ֑ם וַיֹּ֣אמְר֔וּ כֵּ֥ן תַּעֲשֶׂ֖ה כַּאֲשֶׁ֥ר דִּבַּֽרְתָּ׃

(1) The LORD appeared to him by the terebinths of Mamre; he was sitting at the entrance of the tent as the day grew hot. (2) Looking up, he saw three men standing near him. As soon as he saw them, he ran from the entrance of the tent to greet them and, bowing to the ground, (3) he said, “My lords, if it please you, do not go on past your servant. (4) Let a little water be brought; bathe your feet and recline under the tree. (5) And let me fetch a morsel of bread that you may refresh yourselves; then go on—seeing that you have come your servant’s way.” They replied, “Do as you have said.”
Rav Hirsch:
וירא אליו: G-d's presence is everywhere, but not everyone merits to see it. Only one who devotes himself to G-d - as Avraham has just done - merits to see G-d's presence.
כחום היום: The heat of the day normally drives people indoors into the shade; all the more so in the case of one like Avraham, who was still in pain as a result of the brit mila. Avraham, however, does not seek the shade, does not allow himself this relief; rather, he is on the lookout for wayfarers, who are exposed to the burning rays of the sun, and he invites them into the shade of his tent.

(ב) וירא והנה שלשה אנשים נצבים עליו (בראשית יח, ב).

ופירש הזוהר הקדוש והנה שלשה אנשים אלו אברהם יצחק ויעקב.

ויובן דברי מאמר הזוהר.

דידוע דאברהם אבינו עליו השלום עבד תמיד ה' באהבה ובמילה עבד ה' ביראה ויראה היא גבורה ובמילה מכרית הערלה ובזה מכרית כל הקליפות כנזכר בכתבי אריז"ל והוא שמתגבר על כל הקליפות.

אם כן אז במילה היה באברהם אבינו עליו השלום אהבה ויראה אהבה מדריגת אברהם ויראה דהיא גבורה מדריגת יצחק אבינו עליו השלום שבעת שמל עבד השם יתברך במדת גבורה.

וידוע דבכל מקום שיש אהבה ויראה דהוא אש ומים מוכרח שיהיה מדה הממוצע דהיא תפארת בחינת יעקב אבינו דיעקב הוא תפארת לכן אז במילה דהיא אהבה ויראה הוכרח שיהיה התפארת גם כן דהיא הממוצע, אם כן היה אז כל ג' בחינות ומדות של אברהם יצחק ויעקב.

ועל פי זה מובן פירוש הכתוב כפי הזוהר הקדוש וישא עיניו וירא והנה שלשה אנשים נצבים, שראה אז אברהם יצחק ויעקב והבן:

(2) Genesis ‎18,2. “when he looked out, here three men were standing ‎practically on top of him.” The Zohar I, 98, identifies these ‎three “men” as “Avraham, Yitzchok, and Yaakov.” Clearly, we ‎must try and understand what the Zohar meant by this, ‎since the same “Avraham” is reported in the very same verse as ‎running to meet these three “men”.
We have explained ‎earlier that normally Avraham served the Lord from feelings of ‎love, whereas in submitting to the circumcision, he had switched ‎to serving G’d from feelings of ‎יראה‎, awe, i.e. by totally negating ‎the interests of his earthbound personality. By destroying his ‎foreskin, a symbol of limitations and hindrance to spiritual ‎development, known generally as ‎קליפה‎, “husk,” in kabbalistic ‎parlance, (compare writings of Ari z’al) he had attained a ‎new and higher level of spirituality. He had now mastered both ‎the ability to serve the Lord on two levels, ‎אהבה‎ (attribute of ‎חסד‎) ‎and ‎יראה‎, attribute of ‎גבורה‎). The latter attribute is the one that ‎his son Yitzchok would symbolize for us in the future.
It is ‎part of our tradition that whenever the attributes of ‎אהבה‎ and ‎יראה‎, i.e. ‎אש‎, and ‎מים‎, “fire and water,” in terms of our terrestrial ‎part of the universe, are present simultaneously, due to the fact ‎that these two attributes are opposites of one another, we require ‎the presence of a third attribute one that harmonizes between ‎these two opposite attributes. This third attribute is known as ‎תפארת‎, harmony; the third of our patriarchs, Yaakov, is perceived ‎by our sages as having characterized the attribute “harmony.” It ‎follows that at the time of Avraham’s circumcision this third ‎attribute had been present also, i.e. it had a part to play in the ‎performance of that commandment. When the Torah speaks of ‎what Avraham “saw,” it referred to Avraham’s having become ‎aware at that moment that these three attributes, all of which ‎can be part of ‎מצוה‎ performance, had had a part in his having ‎circumcised himself at the command of G’d. The word: ‎נצבים‎, ‎describes the “presence” of all these three attributes during ‎Avraham’s recovery from the physical effects of the circumcision.‎