1 Kings 18:17-20 (King James Version)
17 And it came to pass, when Ahab saw Elijah, that Ahab said unto him, Art thou he that troubleth Israel? 18 And he answered, I have not troubled Israel; but thou, and thy father's house, in that ye have forsaken the commandments of the Lord, and thou hast followed Baalim. 19 Now therefore send, and gather to me all Israel unto mount Carmel, and the prophets of Baal four hundred and fifty, and the prophets of the groves four hundred, which eat at Jezebel's table.
The Contest on Mount Carmel
20 So Ahab sent unto all the children of Israel, and gathered the prophets together unto mount Carmel.