'Burning Coals' in the Bible

Let burning coals fall on them; let them be cast into the fire; into deep pits, so that they do not rise up again.

As coals to burning coals, and wood to fire, so is a quarrelsome man to kindle fighting.

And the likeness of the living creatures: they looked like burning coals of fire; like the appearance of torches. It was continually circling among the living creatures. And the fire was bright, and out of the fire went forth lightning.