'Fire of God' in the Bible

Then Elijah answered and said to them, "If I [am] a man of God, then let fire come down from heaven and consume you and your fifty!" Then the fire of God came down from heaven and consumed him and his fifty.

While this one was still speaking, {another} came and said, "The fire of God fell from the heavens, and it blazed up against the sheep and goats and against the servants, and it consumed them. But I escaped, [even] I alone, to tell you."