'Fire' in the Bible

Who is there even among you that would shut the doors for nought? neither do ye kindle fire on mine altar for nought. I have no pleasure in you, saith the LORD of hosts, neither will I accept an offering at your hand.

But who may abide the day of his coming? and who shall stand when he appeareth? for he is like a refiner's fire, and like fullers' soap:

"The coming day is certainly going to burn like a furnace. All the arrogant and all who practice evil will be stubble the coming day will set them on fire," says the LORD of the Heavenly Armies, "so that it will leave them neither root nor branch.