Never pay back evil for evil to anyone. Respect what is right in the sight of all men. If possible, so far as it depends on you, be at peace with all men. Never take your own revenge, beloved, but leave room for the wrath of God, for it is written, “Vengeance is Mine, I will repay,” says the Lord. “But if your enemy is hungry, feed him, and if he is thirsty, give him a drink; for in so doing you will heap burning coals upon his head.” Do not be overcome by evil, but overcome evil with good. (Romans 12:17-21).
See that no one repays another with evil for evil, but always seek after that which is good for one another and for all men. (1 Thess 5:15).
Do not say, “I will repay evil”; wait for the LORD, and He will save you. (Proverbs 20:22).
To sum up, let all be harmonious, sympathetic, brotherly, kindhearted, and humble in spirit; not returning evil for evil, or insult for insult, but giving a blessing instead; for you were called for the very purpose that you might inherit a blessing. (1 Peter 3:8-9).