Acts 7:26

Next day he came upon two of them fighting and tried to pacify them. "You are brothers!" he said, "why injure one another?"

1 Corinthians 6:5-8

I say this to put you to shame. Has it come to this, that there is not a single wise man among you who could decide a dispute between members of the brotherhood,

Hebrews 13:1

Let your brotherly love continue.

1 Peter 3:8

Lastly, you must all be united, you must have sympathy, brotherly love, compassion, and humility,

1 John 3:11-13

For this is the message you have learned from the very beginning, that we are to 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
Next day he came upon two of them fighting and tried to pacify them. "You are brothers!" he said, "why injure one another?"
1 Corinthians 6:5
I say this to put you to shame. Has it come to this, that there is not a single wise man among you who could decide a dispute between members of the brotherhood,
Hebrews 13:1
Let your brotherly love continue.
1 Peter 3:8
Lastly, you must all be united, you must have sympathy, brotherly love, compassion, and humility,
1 John 3:11
For this is the message you have learned from the very beginning, that we are to love one another: