My dear brothers and sisters, take note of this: Everyone should be quick to listen, slow to speak and slow to become angry, 20 because human anger does not produce the righteousness that God desires. (James 1:19-20)
Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: “It is mine to avenge; I will repay,” says the Lord. 20 On 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.”21 Do not be overcome by evil, but overcome evil with good. (Romans 12:19-21)
But love your enemies, do good to them, and lend to them without expecting to get anything back. Then your reward will be great, and you will be children of the Most High, because he is kind to the ungrateful and wicked. (Luke 6:35)
Be angry, and do not sin;
ponder in your own hearts on your beds, and be silent. Selah (Psalm 4:4)
......useful for teaching, rebuking, correcting and training in righteousness, (II Timothy 3:16b)