Romans 12:19-21 (New International Version)

¹⁹Do not take revenge, my friends, but leave room for God's wrath, for it is written: "It is mine to avenge; I will repay,"^[a]says the Lord. ²⁰On the contrary:
   "If your enemy is hungry, feed him;
      if he is thirsty, give him something to drink.
   In doing this, you will heap burning coals on his head."^{[b] 21}Do not be overcome by evil, but overcome evil with good.