'Fire of God' in the Bible

And Elijah in answer said, If I am a man of God, may fire come down from heaven on you and on your fifty men, and put an end to you. And the fire of God came down from heaven, and put an end to him and his fifty men.

And this one was still talking when another came, and said, The fire of God came down from heaven, burning up the sheep and the goats and the young men completely, and I was the only one who got away safe to give you the news.