If your enemy is hungry, give him something to eat; if thirsty, something to drink. By this, you will be heaping red-hot coals on his head. Do not be mastered by evil, but master evil with good. (Rom. 12:20-21)
Nothing shows an enemy love like setting their head on fire- which, frankly, is what most of us would like to do to our enemies.
NB- Yes I’ve seen all the explanations. None of them really work do they….