1 Samuel 24:5-6

24:5 Afterward David’s conscience bothered him because he had cut off an edge of Saul’s robe. 24:6 He said to his men, “May the Lord keep me far away from doing such a thing to my lord, who is the Lord’s chosen one, by extending my hand against him. After all, he is the Lord’s chosen one.”

Romans 12:19-21

12:19 Do not avenge yourselves, dear friends, but give place to God’s wrath, for it is written, “Vengeance is mine, I will repay,” says the Lord. 12:20 Rather, if your enemy is hungry, feed him; if he is thirsty, give him a drink; for in doing this you will be heaping burning coals on his head. 12:21 Do not be overcome by evil, but overcome evil with good.