1 Peter 4:8

Above everything else, have a warm love for one another, for such a love keeps many sins from occurring [between you].

James 5:20

that person should know that whoever brings a sinner back from the error of his way will save that soul from [spiritual] death and will cover over a large number of sins [i.e., the many sins of that person will become forgiven].

1 Peter 1:22

[Since] you have purified your souls by [your] obedience to the truth [i.e., the Gospel message], which produces a genuine love for your brothers, [now] you should have this kind of fervent, heartfelt love for one another.

Colossians 3:14

And beyond all these things, clothe yourselves with love, which binds these things together in complete [unity].

1 Corinthians 13:1-1

If I have the ability to speak in the languages of human beings and angels [Note: Perhaps the idea is supernaturally and eloquently], but do not have love [for people], I have become [no more than] a noisy gong or a clanging cymbal.

1 Thessalonians 3:12

And may the Lord cause your love for one another, and for everyone, to increase and overflow, just as ours does for you also.

1 Thessalonians 4:9-10

Now you people do not need anyone to write to you about loving [your] brothers, for you yourselves have been taught by God to love one another.

2 Thessalonians 1:3

We ought to thank God for you always, brothers, since it is proper, because your faith is growing so much and the love that every one of you has for each other is increasing more and more.

1 Timothy 1:5

But the goal of this instruction is [to] love [God and people] from a pure heart, a good conscience and a sincere faith.

Hebrews 13:1

Continue to love [one another] as brothers.

James 5:12

But above everything else, my brothers, do not take oaths, not "by the heaven," nor "by the earth," nor by any other oath. But your "yes" should be [simply] "yes," and your "no," [simply] "no," so you do not fall under condemnation.

2 Peter 1:6-7

and knowledge along with your goodness, and self-control along with your knowledge, and endurance along with your self-control, and godliness along with your endurance,

3 John 1:2

[My] dearly loved [friend], I am praying that you will do well in everything [materially ?] and that you will have [good] health, just as your soul [i.e., your spiritual life] is doing well.

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
And beyond all these things, clothe yourselves with love, which binds these things together in complete [unity].
James 5:12
But above everything else, my brothers, do not take oaths, not "by the heaven," nor "by the earth," nor by any other oath. But your "yes" should be [simply] "yes," and your "no," [simply] "no," so you do not fall under condemnation.
3 John 1:2
[My] dearly loved [friend], I am praying that you will do well in everything [materially ?] and that you will have [good] health, just as your soul [i.e., your spiritual life] is doing well.

For

1 Corinthians 13:7
[Love] conceals all [people's] faults; it believes [the best about] all people; it hopes [for the best in] all people; it endures [ill treatment from] all people.
James 5:20
that person should know that whoever brings a sinner back from the error of his way will save that soul from [spiritual] death and will cover over a large number of sins [i.e., the many sins of that person will become forgiven].

General references

John 15:12
My commandment [to you] is this: You should love one another just as I have loved you.
1 Corinthians 16:14
Everything you do should be done lovingly.
Hebrews 13:1
Continue to love [one another] as brothers.
1 John 4:21
And this is the [greatest] commandment [See Matt. 2:37-38] we have received from Him: [It requires] that the person who [claims to] love God should also love his brother.