John Gill Commentary Amos 2:12

"But ye gave the Nazirites wine to drink, and commanded the prophets, saying, Prophesy not." — Amos 2:12 (ASV)

But you gave the Nazarites wine to drink
Contrary to their vow and calling, and in contempt of it, and to make them like themselves; they either persuaded them, or forced them to it: and commanded the prophets, saying, prophesy not ;
hard and heavy things, judgments and denunciations of vengeance, only smooth things; by this authoritative language it appears that this is said of the rulers and governors of the people, as king, princes, and priests; see (Amos 7:12Amos 7:13) .