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.

Treasury of Scripture Knowledge

Summary

Thus saith the LORD, Ye shall not go up, nor fight against your brethren: return every man to his house: for this thing is done of me. And they obeyed the words of the LORD, and returned from going against Jeroboam.

Bible References

Against

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
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
For this is the message that you have heard from the beginning, that we should love one another.