וּבִקַּשְׁתֶּ֥ם מִשָּׁ֛ם אֶת־יְהוָ֥ה אֱלֹהֶ֖יךָ וּמָצָ֑אתָ כִּ֣י תִדְרְשֶׁ֔נּוּ בְּכָל־לְבָבְךָ֖ וּבְכָל־נַפְשֶֽׁךָ׃
C’est alors que tu auras recours à l’Éternel, ton Dieu, et tu le retrouveras, si tu le cherches de tout ton cœur et de toute ton âme.
Ramban
PASS NOT AWAY, I PRAY THEE, FROM THY SERVANT. Abraham spoke to each one of the angels, as is the way of the whole Torah: Ye shall keep all My statutes… and do them;75Leviticus 20:22. According to the author of Kesef Mezukak, the verse here should be [ibid. 18:5]: Ye shall keep My statutes, and Mine ordinances, which if a man do…. Here, as in the succeeding examples, the verse begins with a plural and ends with a singular because the Torah speaks to each person. The nakedness of thy father, and the nakedness of thy mother, shalt thou not uncover;76Ibid., 18:7. And when ye reap the harvest of your land, thou shalt not wholly reap the corner of thy field;77Ibid., 19:9. And from thence ye will seek the Eternal thy G-d, and thou shalt find Him, if thou search after Him with all thy heart and with all thy soul.78Deuteronomy 4:29. The greater part of the Mishneh Torah79The book of Deuteronomy. See ibid., 17:18, for origin of the expression. is written in this manner. A counter-example to the above is the verse: Behold, I set before you this day a blessing and a curse.80Ibid., 11:26. Here He speaks to the whole congregation as a unit and not to each person individually.
Now our Rabbis have said,81Bereshith Rabbah 48:9. “Abraham spoke to the chief of the angels.”82According to this opinion, the word Adonay does not refer to G-d. It is also possible that he said to the chief, “Pass not away, I pray thee, [in the singular sense], and thou and thy companions who will remain with thee wash your feet,” [the verb “wash” being in the plural form].
The correct interpretation appears to me to be that he called them all “lords,” and he turned to each individual, saying to the first one: If now I have found favor in thy eyes, pass not away, and to the second one he said the same, and the same to the third one. He begged each one individually: If now I have found favor in thy eyes, pass not away, and, let now a little water be fetched, and all of ye wash your feet.83Verse 4 here. This was by way of ethical conduct and respect out of his great desire to show kindness towards them. Now he recognized them as transients who did not have the desire to lodge there. This is why he asked of them only that a little water be fetched to wash their feet a little from the heat, to give cold waters to a faint soul,84Proverbs 25:25. and that they recline under the tree in the cool of the day without coming into the tent and the tabernacle.
Now our Rabbis have said,81Bereshith Rabbah 48:9. “Abraham spoke to the chief of the angels.”82According to this opinion, the word Adonay does not refer to G-d. It is also possible that he said to the chief, “Pass not away, I pray thee, [in the singular sense], and thou and thy companions who will remain with thee wash your feet,” [the verb “wash” being in the plural form].
The correct interpretation appears to me to be that he called them all “lords,” and he turned to each individual, saying to the first one: If now I have found favor in thy eyes, pass not away, and to the second one he said the same, and the same to the third one. He begged each one individually: If now I have found favor in thy eyes, pass not away, and, let now a little water be fetched, and all of ye wash your feet.83Verse 4 here. This was by way of ethical conduct and respect out of his great desire to show kindness towards them. Now he recognized them as transients who did not have the desire to lodge there. This is why he asked of them only that a little water be fetched to wash their feet a little from the heat, to give cold waters to a faint soul,84Proverbs 25:25. and that they recline under the tree in the cool of the day without coming into the tent and the tabernacle.
Chizkuni
בכל קראינו אליו, “whenever we call upon Him.” Whenever we make an effort to call upon His assistance; (compare: Deut.4,29): ובקשתם משם את ה' אלוקיך ומצאת כי תדרשנו בכל לבבך ובכל נפשך, “but from there (exile) you will seek the Lord your G-d; you will find Him if you seek Him out with all your heart and all your soul.