'Fire' in the Bible

There appeared to them tongues resembling fire, which were being distributed [among them], and they rested on each one of them [as each person received the Holy Spirit].

‘And I will bring about wonders in the sky aboveAnd signs (attesting miracles) on the earth below,Blood and fire and smoking vapor.

And the natives showed us extraordinary kindness and hospitality; for they kindled a fire and welcomed us all, since it had begun to rain and was cold.

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

Then Paul [simply] shook the creature off into the fire and suffered no ill effects.