Grudge not one against another, brethren, lest ye be condemned: behold, the judge standeth before the door.

James 5:9

You shall not take vengeance or bear a grudge against the sons of your people.

Leviticus 19:18

Turn the other cheek.

Matthew 5:39

Do not rejoice when your enemy falls.

Proverbs 24:17

If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:.

Proverbs 25:21