Acts 7:26

And the next day, he shewed himself to them, as they were quarrelling, and would have persuaded them to peace, saying, Sirs, ye are brethren: why do ye wrong one another?

1 Corinthians 6:5-8

I speak to your shame. What, is there not so much as one wise man among you, that shall be able to judge between his brethren?

Hebrews 13:1

Let brotherly love continue.

1 Peter 3:8

Finally, Be ye all of one mind, sympathizing with each other, love as brethren, be pitiful, be courteous:

1 John 3:11-13

For this is the message which ye heard from the beginning, that we 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 the next day, he shewed himself to them, as they were quarrelling, and would have persuaded them to peace, saying, Sirs, ye are brethren: why do ye wrong one another?
1 Corinthians 6:5
I speak to your shame. What, is there not so much as one wise man among you, that shall be able to judge between his brethren?
Hebrews 13:1
Let brotherly love continue.
1 Peter 3:8
Finally, Be ye all of one mind, sympathizing with each other, love as brethren, be pitiful, be courteous:
1 John 3:11
For this is the message which ye heard from the beginning, that we love one another.