1 Peter 4:8

but above all, let your mutual benevolence be intense, for benevolence cancels a multitude of offences.

James 5:20

that the retrieving of a sinner from his erroneous habits, is saving a soul from ruin, and cancels a multitude of sins.

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;

Colossians 3:14

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

1 Corinthians 13:1-1

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 4:9-10

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

2 Thessalonians 1:3

We are oblig'd, my brethren, to render thanks to God continually upon your account, as it is but just; since your faith still improves, and your mutual love is always increasing.

1 Timothy 1:5

such a charge will produce that charity, which arises from purity, from a good conscience, and a sincere belief:

Hebrews 13:1

Let brotherly love still reign.

James 5:12

Above all things, my brethren, don't swear, neither by the heaven, nor by the earth, nor use any other oath; but let your affirmation, or negation, be sincere, lest you fall under condemnation.

2 Peter 1:6-7

to knowledge, temperance: to temperance, patience: to patience, piety:

3 John 1:2

I wish, my beloved, you may be as prosperous with regard to your health and other circumstances, as in what concerns your soul.

Treasury of Scripture Knowledge

Summary

And above all things have fervent charity among yourselves: for charity shall cover the multitude of sins.

Bible References

Above

Colossians 3:14
to all this add love, which is the band of perfect union:
James 5:12
Above all things, my brethren, don't swear, neither by the heaven, nor by the earth, nor use any other oath; but let your affirmation, or negation, be sincere, lest you fall under condemnation.
3 John 1:2
I wish, my beloved, you may be as prosperous with regard to your health and other circumstances, as in what concerns your soul.

For

1 Corinthians 13:7
it excuses all things, believes what is favourable, hopes for the best, and suffers the worst.
James 5:20
that the retrieving of a sinner from his erroneous habits, is saving a soul from ruin, and cancels a multitude of sins.

General references

John 15:12
this is my commandment, that ye love one another, as I have loved you.
1 Corinthians 16:14
let all your transactions flow from social affections.
Hebrews 13:1
Let brotherly love still reign.
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.