'Fire' in the Bible

Tongues like fire appeared and were distributed to them, and one sat on each of them.

I will show wonders in the sky above, and signs on the earth beneath; blood, and fire, and billows of smoke.

"When forty years were fulfilled, an angel of the Lord appeared to him in the wilderness of Mount Sinai, in a flame of fire in a bush.

The natives showed us uncommon kindness; for they kindled a fire, and received us all, because of the present rain, and because of the cold.

But when Paul had gathered a bundle of sticks and laid them on the fire, a viper came out because of the heat, and fastened on his hand.

However he shook off the creature into the fire, and wasn't harmed.