וַיְהִ֕י הֵ֥ם יֹשְׁבִ֖ים אֶל־הַשֻּׁלְחָ֑ן (פ) וַֽיְהִי֙ דְּבַר־יְהוָ֔ה אֶל־הַנָּבִ֖יא אֲשֶׁ֥ר הֱשִׁיבֽוֹ׃
Aber als sie eben am Tische saßen, da erging das Wort des Herrn an den Propheten, der ihn zurückgebracht.
Rashi
That caused him to return. To the man of God. From here they [the Rabbis] deduced that [offering] refreshment is a great thing, for it causes the Divine Presence to rest on the prophets of the Baal.8The simple act of hospitality can have great and far reaching consequences. See Maseches Sanhedrin 103b-104a.