2 Kings 1:9-11

9 And he sent to Elijah a prince of fifty, and [the] fifty men that were under him. Which prince ascended [or went up] to him, and said to him, sitting in the top of the hill, Man of God, the king commandeth, that thou come down.

10 And Elijah answered, and said to the prince of fifty men, If I am the man of God, fire come down from heaven, and devour thee and thy fifty men. Therefore fire came down from heaven, and devoured him, and the fifty men that were with him.

11 Again he sent to Elijah another prince of fifty, and fifty men with him, which spake to Elijah, Man of God, the king saith these things, Haste thou, come thou down.