And when you stand praying, if you hold anything against anyone, forgive him, so that your Father in heaven may forgive you your sins.
Mark 11:25 NIV
Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
1 Peter 3:8,9 KJV
If your enemy is hungry, give him bread to eat; and if he is thirsty, give him water to drink; for you will heap coals of fire on his head, and the LORD will reward you.
Proverbs 25:21,22 RSV
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.
Romans 12:17-19 NASB


