1 Kings 18:25-28

25 Elijah said to the prophets of Baal, “Choose one of the bulls and prepare it first, since there are so many of you. Call on the name of your god, but do not light the fire.”

26 So they took the bull given them and prepared it.
Then they called on the name of Baal from morning till noon. “O Baal, answer us!” they shouted. But there was no response; no one answered. And they danced around the altar they had made.

27 At noon Elijah began to taunt them. “Shout louder!” he said. “Surely he is a god! Perhaps he is deep in thought, or busy, or traveling. Maybe he is sleeping and must be awakened.”

28 So they shouted louder and slashed themselves with swords and spears, as was their custom, until their blood flowed.