Acts 7:26
The next day, also, he came and found two of them fighting, and he endeavoured to make peace between them. "'Sirs,' he said, 'you are brothers. Why are you wronging one another?'
John 15:17-18
"Thus I command you to love one another.
1 Corinthians 6:6-8
but brother goes to law with brother, and that before unbelievers?
Philippians 2:1
If then I can appeal to you as the followers of Christ, if there is any persuasive power in love and any common sharing of the Spirit, or if you have any tender-heartedness and compassion, make my joy complete by being of one mind,
Philippians 2:3
Do nothing in a spirit of factiousness or of vainglory, but, with true humility, let every one regard the rest as being of more account than himself;
1 John 3:11-15
For this is the Message you have heard from the beginning--that we are to love one another.