11 distinct Greek words appear in this verse.

• Love
• Obedience and Disobedience

3 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1John 2:8 — Again, a new commandment I write unto you, which thing is true in him and in you: because the darkness is past, and the true light now shineth.
• 1John 3:10 — In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
• 1John 3:11 — For this is the message that ye heard from the beginning, that we should love one another.
• 1John 3:11 — For this is the message that ye heard from the beginning, that we should love one another.
• 1John 3:14 — We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.
• 1John 3:18 — My little children, let us not love in word, neither in tongue; but in deed and in truth.
• 1John 3:23 — And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
• 1John 3:23 — And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
• 1John 4:11 — Beloved, if God so loved us, we ought also to love one another.
• 1John 5:2 — By this we know that we love the children of God, when we love God, and keep his commandments.
• 1Pet 3:8 — Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous:
• 1Pet 4:8 — And above all things have fervent charity among yourselves: for charity shall cover the multitude of sins.
• 1Thess 4:9 — But as touching brotherly love ye need not that I write unto you: for ye yourselves are taught of God to love one another.
• 1Thess 4:9 — But as touching brotherly love ye need not that I write unto you: for ye yourselves are taught of God to love one another.
• 2Pet 1:7 — And to godliness brotherly kindness; and to brotherly kindness charity.
• Col 3:14 — And above all these things put on charity, which is the bond of perfectness.
• Eph 1:15 — Wherefore I also, after I heard of your faith in the Lord Jesus, and love unto all the saints,
• Gal 5:6 — For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love.
• Gal 5:14 — For all the law is fulfilled in one word, even in this; Thou shalt love thy neighbour as thyself.
• Gal 6:2 — Bear ye one another’s burdens, and so fulfil the law of Christ.
• John 13:34 — A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
• John 13:34 — A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
• John 15:12 — This is my commandment, That ye love one another, as I have loved you.
• John 15:12 — This is my commandment, That ye love one another, as I have loved you.
• Lev 19:18 — Thou shalt not avenge, nor bear any grudge against the children of thy people, but thou shalt love thy neighbour as thyself: I am the LORD.
• Luke 10:37 — And he said, He that shewed mercy on him. Then said Jesus unto him, Go, and do thou likewise.
• Mark 12:29 — And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:
• Mark 12:31 — And the second is like, namely this, Thou shalt love thy neighbour as thyself. There is none other commandment greater than these.
• Matt 5:43 — Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy.
• Matt 22:37 — Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
• Prov 14:31 — He that oppresseth the poor reproacheth his Maker: but he that honoureth him hath mercy on the poor.
• Rom 12:9 — Let love be without dissimulation. Abhor that which is evil; cleave to that which is good.
• Rom 13:9 — For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly compr