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?'
1 Corinthians 6:5-8
I say this to put you to shame. Has it come to this, that there does not exist among you a single wise man competent to decide between a man and his brother,
Hebrews 13:1
Let brotherly love always continue.
1 Peter 3:8
In conclusion, all of you should be of one mind, quick to sympathize, kind to the brethren, tenderhearted, lowly-minded,
1 John 3:11-13
For this is the Message you have heard from the beginning--that we are to love one another.