1 John 3:15
Anyone who hates his brother is a murderer, and you know that no murderer has eternal life abiding in him.
Matthew 18:15
"If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother.
Ephesians 4:26
Be angry, and yet do not sin; do not let the sun go down on your anger,
Ephesians 4:31
Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice.
1 John 2:9
He who says he is in the light and hates his brother is in the darkness still.
1 John 2:11
But he who hates his brother is in the darkness and walks in the darkness, and does not know where he is going, because the darkness has blinded his eyes.