" The prophets of Baal called to their gods all day, but nothing happened.
Then Elijah repaired the altar of the Lord, dug a trench around it and placed a bull on it as an offering to the Lord. For good measure, he soaked the altar with water three times until the water ran all around the altar, filling up the trench. Then he cried out to God, and the fire of God descended on the altar, consumed everything on it and around it, "and even licked up the water in the trench."
The people of Israel fell on their faces in God's presence, acknowledging him as the true God. The prophets of Baal tried to run away from such a fearsome display of power, but Elijah captured them and killed them all.
When we catch up with Elijah in 1 Kings 19, he is exhausted from the outpouring of spiritual, physical and emotional energy that this confrontation had required. His life is in danger because of the threat he now posed for the queen of the land, and he is deeply afraid. He is in the throes of the kind of major letdown that often comes when we have given everything we've got. So there was literally nothing he could do but collapse under a solitary broom tree. "

― Ruth Haley Barton , Invitation to Solitude and Silence: Experiencing God's Transforming Presence