1 Kings 18:20

So Ahab sent unto all the children of Israel, and gathered the prophets together unto mount Carmel.

Cross-reference

In 1 Kings 18:22, Elijah laments being the only Lord's prophet amid the 450 Baal prophets just gathered — highlighting the odds.

In 1 Kings 22:9, Ahab summons Micaiah — another instance of Ahab gathering prophets, but here a true prophet rather than false ones.

2 Kings 10:20 also shows a king assembling Baal worshippers, but Jehu's gathering is a trap to destroy them — echoing this earlier summons.