1 John 3:15
Every one that hates his brother is a murderer; and ye know that no murderer has eternal life abiding in him.
Matthew 18:15
"And, if your brother sin against you, go show him his fault between you and him alone. If he hear you, you gained your brother;
Ephesians 4:26
Be ye angry, and sin not: let not the sun go down upon your wrath;
Ephesians 4:31
Let all bitterness, and wrath, and anger, and clamor, and reviling, be put away from you, with all wickedness;
1 John 2:9
He who says that he is in the light, and hates his brother, is in the darkness even until now.
1 John 2:11
But he that hates his brother is in the darkness, and walks in the darkness, and knows not where he is going, because the darkness blinded his eyes.