So Ahab summoned all the Israelites and assembled the prophets on Mount Carmel.

1 Kings 18:19
Now summon all Israel to meet me on Mount Carmel, along with the four hundred and fifty prophets of Baal and the four hundred prophets of Asherah who eat at Jezebel's table."

1 Kings 18:21
Then Elijah approached all the people and said, "How long will you waver between two opinions? If the LORD is God, follow Him. But if Baal is God, follow him." But the people did not answer a word.

1 Kings 18:42
So Ahab went up to eat and drink. But Elijah climbed to the summit of Carmel, bent down on the ground, and put his face between his knees.

2 Kings 2:25
And Elisha went on to Mount Carmel, and from there he returned to Samaria.

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