How Long Halt You Between Two Opinions?

I Kings 18:17-21

17   And it came to pass, when Ahab saw Elijah, that Ahab said unto him, Are you he that troubles Israel?
18   And he answered, I have not troubled Israel; but you, and your father's house, in that you have forsaken the commandments of the LORD, and you have 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.
20   So Ahab sent unto all the children of Israel, and gathered the prophets together unto mount Carmel.
21   And Elijah came unto all the people, and said, How long halt you between two opinions? if the LORD be God, follow him: but if Baal, then follow him. And the people answered him not a word.