1 Kings 18:26; 1 Kings 18:28

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

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