'Burning Coals' in the Bible

and shall take the censer-full of burning coals of fire from off the altar from before Yahweh, and his hands full of fragrant incense, beaten small, - and bring within the veil;

The arrows of the hero sharpened, with burning coals of broom.

For, burning coals, shalt thou be heaping upon his head, - and, Yahweh, will repay thee.