Walk through Amos, verse by verse, with the great Bible Commentaries of Matthew Henry (1662 - 1714) & Adam Clarke (1760 - 1832)
7:12
Also Amaziah said unto Amos, O thou seer, go, flee thee away into the land of Judah, and there eat bread, and prophesy there: KJV
{And Amaziah said to Amos, Thou that seest, go; flee thou into the land of Judah, and eat thou there
thy bread; and there thou shalt prophesy.} Wycliffe's Bible
He complained against Amos, not only because he prophesied without license from him, but because he prophesied against his altars, which would soon be deserted and demolished if Amos’s preaching could but gain credit. Thus the shrine-makers at Ephesus hated Paul, because his preaching tended to spoil their trade. Note, Great pretenders to sanctity are commonly the worst enemies to those who are really sanctified. Priests have been the most bitter persecutors.