Then Amaziah the priest of Beth El sent to Jeroboam king of Israel, saying, "Amos has conspired against you in the midst of the house of Israel. The land is not able to bear all his words.
Note particularly the point in Amos' preaching at which this rude interruption by the pagan priest occurred.  Neither of the first two visions occasioned any objection from Amaziah, for they were accounts of deliverances which God had extended to Israel; but this third vision, which was a bold and thundering prophecy of the immediate and impending doom of the whole nation, to be effected by the overthrow of the monarchy, the destruction of the sanctuaries, and the captivity of the whole nation, aroused the "high priest" of Bethel to action, which issued in his sending a hasty message to the king, and then, apparently not waiting for any authority, nevertheless took what action he could against Amos without any authority.  It would appear that Amaziah had been listening to all that Amos said.