Passage cross-references.

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

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.

Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God.

A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another. …

And this commandment have we from him, That he who loveth God love his brother also.

And walk in love, as Christ also hath loved us, and hath given himself for us an offering and a sacrifice to God for a sweetsmelling savour.

Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous:

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

But as touching brotherly love ye need not that I write unto you: for ye yourselves are taught of God to love one another.

This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.

Bear ye one another’s burdens, and so fulfil the law of Christ.

Now the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned:

Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently:

Brethren, I write no new commandment unto you, but an old commandment which ye had from the beginning. The old commandment is the word which ye have heard from the beginning. …