Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice. Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you. Ephesians 4:31-32
Therefore each of you must put off falsehood and speak truthfully to his neighbor, for we are all members of one body. "In your anger do not sin": Do not let the sun go down while you are still angry, and do not give the devil a foothold. Ephesians 4:25-27