הֲיֵלְכ֥וּ שְׁנַ֖יִם יַחְדָּ֑ו בִּלְתִּ֖י אִם־נוֹעָֽדוּ׃
Will two walk together, Except they have agreed?
Rashi on Amos
Will two walk together—Concerning what you say to the prophets, “Do not prophesy,” do the prophets prophesy from their own mind unless they were commanded? Are things done in any way but in their customary fashion?
Rashi on Amos
unless they agree—Unless they made an appointment to go together to such and such a place.