(א) וַיֵּרָ֤א אֵלָיו֙ ה' 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 אדושם 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׃ (ו) וַיְמַהֵ֧ר אַבְרָהָ֛ם הָאֹ֖הֱלָה אֶל־שָׂרָ֑ה וַיֹּ֗אמֶר מַהֲרִ֞י שְׁלֹ֤שׁ סְאִים֙ קֶ֣מַח סֹ֔לֶת ל֖וּשִׁי וַעֲשִׂ֥י עֻגֽוֹת׃ (ז) וְאֶל־הַבָּקָ֖ר רָ֣ץ אַבְרָהָ֑ם וַיִּקַּ֨ח בֶּן־בָּקָ֜ר רַ֤ךְ וָטוֹב֙ וַיִּתֵּ֣ן אֶל־הַנַּ֔עַר וַיְמַהֵ֖ר לַעֲשׂ֥וֹת אֹתֽוֹ׃ (ח) וַיִּקַּ֨ח חֶמְאָ֜ה וְחָלָ֗ב וּבֶן־הַבָּקָר֙ אֲשֶׁ֣ר עָשָׂ֔ה וַיִּתֵּ֖ן לִפְנֵיהֶ֑ם וְהֽוּא־עֹמֵ֧ד עֲלֵיהֶ֛ם תַּ֥חַת הָעֵ֖ץ וַיֹּאכֵֽלוּ׃
(1) G-d 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.” (6) Abraham hastened into the tent to Sarah, and said, “Quick, three seahs of choice flour! Knead and make cakes!” (7) Then Abraham ran to the herd, took a calf, tender and choice, and gave it to a servant-boy, who hastened to prepare it. (8) He took curds and milk and the calf that had been prepared and set these before them; and he waited on them under the tree as they ate.
(ד) פתח האהל לִרְאוֹת אִם יֵשׁ עוֹבֵר וְשָׁב וְיַכְנִיסֵם בְּבֵיתוֹ:
(ה) כחום היום הוֹצִיא הַקָבָּ"ה חַמָה מִנַרְתִּיקָהּ, שֶׁלֹּא לְהַטְרִיחוֹ בְּאוֹרְחִים, וּלְפִי שָׁרָאָהוּ מִצְטַעֵר, שֶׁלֹּא הָיוּ אוֹרְחִים בָּאִים, הֵבִיא הַמַּלְאָכִים עָלָיו בִּדְמוּת אַנָשִׁים (בבא מציעא שם):
(4) פתח האהל AT THE TENT-DOOR — that he might see whether anyone passed by, and invite him into the house
(5) כחום היום IN THE HEAT OF THE DAY — The Holy Blessed One,brought the sun out of its sheath that he might not be troubled by travellers, and when He perceived that he was grieved that no travellers came He brought to him angels in the form of men (Bava Metzia 86b).
אֵלּוּ דְבָרִים שֶׁאָדָם אוֹכֵל פֵּרוֹתֵיהֶן בָּעוֹלָם הַזֶּה וְהַקֶּרֶן קַיֶּמֶת לוֹ לָעוֹלָם הַבָּא. כִּבּוּד אָב וָאֵם, וּגְמִילוּת חֲסָדִים, וַהֲבָאַת שָׁלוֹם בֵּין אָדָם לַחֲבֵרוֹ, וְתַלְמוּד תּוֹרָה כְּנֶגֶד כֻּלָּם:
These are things the fruits of which a man enjoys in this world, while the principal remains for him in the World to Come: Honoring one's father and mother, acts of kindness, and bringing peace between a man and his fellow. But the study of Torah is equal to them all.
Avot D'Rabbi Natan 7:17a
Let your house be open; let the poor be members of your household. Let a person’s house be open to the north and to the south and to the east and to the west, even as Abraham’s house was, for Abraham made four doors to his house, that the poor might not be troubled to go round the house, but that each would find they faced a door as they approached . . .
Rebbe Nachman of Bratzlav Likutei Moharan 1:56
There are two types of hiddenness:
When G!d is hidden behind a single veil, it makes it very hard to find Divinity. Still, when there just one veil it is still possible to toil and search until one finds G!d, since one knows that God is hidden. However, when G!d is hidden behind two veils (that is G!d's concealment itself is veiled from a person) and one is not aware at all that G!d is hidden from oneself, then it is totally impossible to find G!d since one is not even aware of the presence...
But nevertheless, even with two veils - G!d is certainly certainly there. There is nothing lacking G!d's life-force. For without that there could be any existence. Therefore in all things, people, deeds and thoughts - G!d, G!dself is clothed.