Romans (Rom) 12:19-21

Never seek revenge, my friends; instead, leave that to God’s anger; for in the Tanakh it is written, “ADONAI says, ‘Vengeance is my responsibility; I will repay.’” On the contrary, “If your enemy is hungry, feed him; if he is thirsty, give him something to drink. For by doing this, you will heap fiery coals [of shame] on his head.” Do not be conquered by evil, but conquer evil with good.