7 Bible Verses about Coal, Metaphorical Use

Do not lust after her beauty in your heart; nor let her take you with her eyelids. For by means of a harlot a man comes to a piece of bread; and another man's wife will hunt for the precious life. Can a man take fire in his bosom, and his clothes not be burned?read more.
Can one go upon hot coals, and his feet not be burned?

Then one of the seraphs flew to me, having a live coal in his hand, snatched with tongs from the altar.

Therefore if your enemy hungers, feed him. If he thirsts, give him drink. For in so doing you shall heap coals of fire on his head.

And behold, the whole family has risen against your handmaid. And they said, Deliver him who struck his brother so that we may kill him for the life of his brother whom he killed. And we will destroy the heir also. And so they shall put out my coal which is left, and shall leave to my husband neither name nor remainder upon the face of the earth.

Therefore if your enemy hungers, feed him. If he thirsts, give him drink. For in so doing you shall heap coals of fire on his head. Do not be overcome by evil, but overcome evil with good.

Can a man take fire in his bosom, and his clothes not be burned? Can one go upon hot coals, and his feet not be burned? So is he who goes in to his neighbor's wife; whoever touches her shall not be innocent.

If your enemy is hungry, give him bread to eat; and if he is thirsty, give him water to drink, for you shall heap coals of fire upon his head, and Jehovah shall reward you.