'Fire of God' in the Bible

And Elijah answered and said to them, If I am 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.

While he was yet speaking, there came also another, and said, The fire of God hath fallen from heaven, and hath burned up the sheep and the servants, and consumed them; and I only have escaped alone to tell thee.