Acts 7:26

And the next day he showed himself to them as they were contending, and urged them to peace, saying, Ye are brethren; why do ye wrong one another?

1 Corinthians 6:6-7

Nay, brother goeth to law with brother, and that before unbelievers.

Matthew 5:9

Blessed are the peacemakers; for they will be called sons of God.

Romans 12:10

In brotherly love, be affectionate to one another; in honor, give each other the preference.

Ephesians 4:2-3

with all humility and meekness, with longsuffering; bearing with one another in love,

Philippians 2:14

Do all things without murmurings and doubts;

1 Thessalonians 4:9

But concerning brotherly love there is no need of writing to you; for ye yourselves are taught of God to love one another;

Hebrews 12:14

Follow peace with all men, and holiness, without which no one will see the Lord;

Hebrews 13:1

Let brotherly love continue.

James 3:17-18

But the wisdom from above is first pure, then peaceable, gentle, easy to be entreated, full of mercy and good fruits, without partiality, without hypocrisy.

1 Peter 1:22

Seeing ye have purified your souls in obeying the truth unto unfeigned brotherly love, love one another from the heart, fervently;

1 Peter 2:17

Honor all men; love the brotherhood; fear God; honor the king.

1 Peter 3:8

Finally, be, all of one mind, have fellow feeling, love as brethren, be compassionate, be humble;

1 Peter 4:8

And above all things have fervent love among yourselves; for love covereth a multitude of sins.

2 Peter 1:7

and to godliness brotherly kindness, and to brotherly kindness love.

1 John 2:9-11

He that saith he is in the light, and hateth his brother, is in the darkness until now.

1 John 3:14-19

We know that we have passed out of death into life, because we love the brethren; he that loveth not abideth in death.

1 John 4:7

Beloved, let us love one another; for love is from God, and every one that loveth hath been born of God, and knoweth God;

1 John 4:20-21

If any one saith, I love God, and hateth his brother, he is a liar; for he that loveth not his brother, whom he hath seen, how can he love God, whom he hath not seen?

Treasury of Scripture Knowledge

Summary

And Abram said unto Lot, Let there be no strife, I pray thee, between me and thee, and between my herdmen and thy herdmen; for we be brethren.

General references

Bible References

Let

Matthew 5:9
Blessed are the peacemakers; for they will be called sons of God.
1 Corinthians 6:6
Nay, brother goeth to law with brother, and that before unbelievers.
Philippians 2:14
Do all things without murmurings and doubts;
Hebrews 12:14
Follow peace with all men, and holiness, without which no one will see the Lord;
James 3:17
But the wisdom from above is first pure, then peaceable, gentle, easy to be entreated, full of mercy and good fruits, without partiality, without hypocrisy.

General references

Mark 3:25
and if a house be divided against itself, that house will not be able to stand;
John 13:35
By this will all men know that ye are my disciples, if ye have love one for another.