2 Peter 1:7

to piety, fraternal affection: and to fraternal affection, universal benevolence.

Romans 12:10

in brotherly kindness be passionately affected to one another; in honour prefer one another:

John 13:34-35

a new commandment I give unto you, "that ye love one another; that you would have the same love for one another as I have had for you."

1 Corinthians 13:1-8

For tho' I should speak with the eloquence of men, and of angels, and not have social affection, I should be like sounding brass, or a noisy cymbal.

1 Thessalonians 3:12

may the Lord make you increase and abound in mutual love, in love towards all men, as we do towards you:

1 Thessalonians 5:15

Don't allow any one to return evil for evil, but strive to do all the good you can to one another, and to all the world.

Hebrews 13:1

Let brotherly love still reign.

1 Peter 1:22

You that have purified your souls by the holy spirit, in obeying the gospel, which obliges you to an undisguised benevolence, let your hearts be mutually affected with the most disinterested ardour;

Galatians 6:10

therefore as we have opportunity, let us do good offices to all men, especially to the family of believers.

Colossians 3:14

to all this add love, which is the band of perfect union:

1 Thessalonians 4:9-10

As to brotherly love, I have no occasion to write about it, God himself having instructed you to love one another.

1 Peter 2:17

of God. Be respectful to all, love your brethren, fear God, and honour the king.

1 Peter 3:8

In a word, live all of you in perfect agreement and sympathy, be full of fraternal love, compassion, and affability.

1 John 3:14

as for us, we know, that we have passed from a state of death to that of life, because we love our brethren: he that does not love his brother, is in a destructive state.

1 John 3:16

this is the proof of the divine love, Christ expos'd his life for us: and we ought to expose our lives for the brethren.

1 John 4:21

besides, 'tis a commandment we have receiv'd from him, that he who would love God, must love his brother also.

Treasury of Scripture Knowledge

Summary

And to godliness brotherly kindness; and to brotherly kindness charity.

Bible References

Brotherly

John 13:34
a new commandment I give unto you, "that ye love one another; that you would have the same love for one another as I have had for you."
Romans 12:10
in brotherly kindness be passionately affected to one another; in honour prefer one another:
1 Thessalonians 3:12
may the Lord make you increase and abound in mutual love, in love towards all men, as we do towards you:
1 Thessalonians 4:9
As to brotherly love, I have no occasion to write about it, God himself having instructed you to love one another.
Hebrews 13:1
Let brotherly love still reign.
1 Peter 1:22
You that have purified your souls by the holy spirit, in obeying the gospel, which obliges you to an undisguised benevolence, let your hearts be mutually affected with the most disinterested ardour;
1 Peter 2:17
of God. Be respectful to all, love your brethren, fear God, and honour the king.
1 John 3:14
as for us, we know, that we have passed from a state of death to that of life, because we love our brethren: he that does not love his brother, is in a destructive state.

General references

Luke 1:75
in the sincere practice of holiness and justice, all our days.
1 Corinthians 16:14
let all your transactions flow from social affections.
Hebrews 13:1
Let brotherly love still reign.