2 John 1:5

And now I ask you, lady, not as though I were writing you a new commandment, but the one we have had from the beginning, that we love one another.

1 John 3:11

For this is the message which you heard from the beginning, that we should love one another,

John 13:34-35

A new commandment I give to you, that you love one another; as I have loved you, that you also love one another.

John 15:12

This is my commandment, that you love one another as I have loved you.

Galatians 5:22

But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness,

Ephesians 5:2

and walk in love, just as Christ loved us and gave himself up for us as a fragrant offering and sacrifice to God.

1 Thessalonians 4:9

Now concerning love of the brethren you have no need to have any one write to you, for you yourselves have been taught by God to love one another;

Hebrews 13:1

Let brotherly love continue.

1 Peter 1:22-23

Since you have purified your souls by obedience to the truth for a sincere love of the brethren, love one another earnestly from the heart.

1 Peter 4:8

Above all, hold unfailing your love for one another, because love covers a multitude of sins.

2 Peter 1:7

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

1 John 2:7-8

Beloved, I am writing you no new commandment, but an old commandment that you had from the beginning. The old commandment is the word that you have heard.

1 John 3:14-18

We know that we have passed from death to life, because we love the brethren. He who does not love abides in death.

1 John 3:23

And this is his commandment: that we should believe in the name of his Son Jesus Christ, and love one another, just as he has commanded us.

1 John 4:7-12

Beloved, let us love one another, for love is of God; and everyone who loves is born of God and knows God.

1 John 4:20

If anyone says, "I love God," and hates his brother, he is a liar; for he who does not love his brother whom he has seen, cannot love God whom he has not seen.

Treasury of Scripture Knowledge

Summary

And now I beseech thee, lady, not as though I wrote a new commandment unto thee, but that which we had from the beginning, that we love one another.

General references

Bible References

Not

1 John 2:7
Beloved, I am writing you no new commandment, but an old commandment that you had from the beginning. The old commandment is the word that you have heard.
1 John 3:11
For this is the message which you heard from the beginning, that we should love one another,

General references

Hebrews 13:1
Let brotherly love continue.