Parallel
Romans 12:20
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head.
On the contrary, “If your enemy is hungry, feed him; if he is thirsty, give him a drink. For in so doing, you will heap burning coals on his head (note: Proverbs 25:21–22 (see also LXX)).”