Acts 7:26
And on the next day he showed himself to them, as they were fighting, and endeavored to persuade them to peace, saying, Men, you are brothers: why do you injure one another?
1 Corinthians 6:5-8
I speak to your shame. Is it so, that there is not among you a wise man, not even one, who shall be able to arbitrate between his brethren?
Hebrews 13:1
Let brotherly love continue.
1 Peter 3:8
Finally, be all of the same mind, be sympathizing, lovers of the brethren, kind-hearted, humble-minded;
1 John 3:11-13
For this is the message that you have heard from the beginning, that we should love one another.