וַיִּקַ֥ץ שְׁלֹמֹ֖ה וְהִנֵּ֣ה חֲל֑וֹם וַיָּב֨וֹא יְרוּשָׁלִַ֜ם וַֽיַּעֲמֹ֣ד ׀ לִפְנֵ֣י ׀ אֲר֣וֹן בְּרִית־אֲדֹנָ֗י וַיַּ֤עַל עֹלוֹת֙ וַיַּ֣עַשׂ שְׁלָמִ֔ים וַיַּ֥עַשׂ מִשְׁתֶּ֖ה לְכָל־עֲבָדָֽיו׃ (פ)
Salomo erwachte; es war ein Traum. Er ging nach Jerusalem und stellte sich vor die Bundeslade des Herrn; dort opferte er Ganzopfer und Mahlopfer und bereitete ein Mahl allen seinen Dienern.
Ramban
The meaning of the expression and they drank, is that they made it an occasion for rejoicing and festival, for such is one’s duty to rejoice at the receiving of the Torah, just as He commanded when they finished writing all the words of the Torah upon the stones, And thou shalt sacrifice peace-offerings, and shalt eat there; and thou shalt rejoice before the Eternal thy G-d.545Deuteronomy 27:7. And with reference to Solomon it is written, Wisdom and knowledge is granted unto thee etc.,546II Chronicles 1:12. and immediately after that, he came to Jerusalem… and made a feast for all his servants.547I Kings 3:15. “Said Rabbi Eleazar:548Shir Hashirim Rabbah 1:9. From here you learn that we make a feast at the finishing of the Torah.” With reference to David, Solomon’s father, it is likewise said that when the people gave of their free-will towards the building of the Sanctuary, And they offered sacrifices unto the Eternal, and offered burnt-offerings unto the Eternal etc., and they did eat and drink before the Eternal on that day with great gladness.549I Chronicles 29:21-22. Similarly, here too on the day of the “wedding” of the Torah,550Taanith 26b. they did likewise.