1 Kings 18:36-40
18:36 When it was time for the evening offering, Elijah the prophet approached the altar and prayed: “O Lord God of Abraham, Isaac, and Israel, prove today that you are God in Israel and that I am your servant and have done all these things at your command.
18:37 Answer me, O Lord, answer me, so these people will know that you, O Lord, are the true God and that you are winning back their allegiance.”
18:38 Then fire from the Lord fell from the sky. It consumed the offering, the wood, the stones, and the dirt, and licked up the water in the trench.
18:39 When all the people saw this, they threw themselves down with their faces to the ground and said, “The Lord is the true God! The Lord is the true God!”
18:40 Elijah told them, “Seize the prophets of Baal! Don’t let even one of them escape!” So they seized them, and Elijah led them down to the Kishon Valley and executed them there.