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 something to drink; for in so doing you will heap burning coals on his head."

References:

• Deuteronomy 32:35
• Romans 12:19-20
• Proverbs 25:21-23