2 Kings 1:12 in the King James Version
And Elijah answered and said unto them, If I be a man of God, let fire come down from heaven, and consume thee and thy fifty. And the fire of God came down from heaven, and consumed him and his fifty.
Context
11 Again he sent to him another captain of fifty with his fifty. He answered him, “Man of God, the king has said, ‘Come down quickly!’”
12 Elijah answered them, “If I am a man of God, then let fire come down from the sky and consume you and your fifty!” Then God’s fire came down from the sky, and consumed him and his fifty.
13 Again he sent the captain of a third fifty with his fifty. The third captain of fifty went up, and came and fell on his knees before Elijah, and begged him, and said to him, “Man of God, please let my life and the life of these fifty of your servants be precious in your sight.