Acts 7:26

The next day, he came across two of them fighting and tried to pacify them. He said to them, 'You are brothers. Why should you injure each other?'

1 Corinthians 6:5-8

I ask it to shame you. Has it come to this, that there is not a single wise man among you who could settle a disagreement between one brother and another,

Hebrews 13:1

Your love for the brotherhood must continue.

1 Peter 3:8

Finally, you must all be harmonious, sympathizing, loving, tender-hearted, modest,

1 John 3:11-13

For the message you have heard from the beginning is this: We must 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
The next day, he came across two of them fighting and tried to pacify them. He said to them, 'You are brothers. Why should you injure each other?'
1 Corinthians 6:5
I ask it to shame you. Has it come to this, that there is not a single wise man among you who could settle a disagreement between one brother and another,
Hebrews 13:1
Your love for the brotherhood must continue.
1 Peter 3:8
Finally, you must all be harmonious, sympathizing, loving, tender-hearted, modest,
1 John 3:11
For the message you have heard from the beginning is this: We must love one another.