If I'm a man of God, let a fire come down from heaven and burn you to death.
And a fire came down and burned them to death.
Elijah destroying the messengers of Ahaziah by Gustave Doré
11 So Ahaziah sent a second captain and fifty men. They found Elijah and the captain said to him, “Oh man of God, the king asks you to come down quickly.”
Since you sent messengers to ask Baalzebub, you will die.
17 So King Ahaziah died according to the word of God that Elijah spoke.
Ahaziah’s brother, Jehoram, became king of Israel since Ahaziah had no son.
A few more words about this episode
He is Elijah! (2:8)
Elijah is a saint in the Catholic and Orthodox churches. He is the patron saint and founder of the Carmelite order.
Saint Elijah: Founder of the Carmelite order (feast day July 20)