21 This commandment we have from him, that he who loves God should also love his brother.
Jesus said to him, "'You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.' This is the first and great commandment. A second likewise is this, 'You shall love your neighbor as yourself.'
For the commandments, "You shall not commit adultery," "You shall not murder," "You shall not steal," "You shall not give false testimony," "You shall not covet,"{TR adds "You shall not give false testimony,"} and whatever other commandments there are, are all summed up in this saying, namely, "You shall love your neighbor as yourself." Love doesn't harm a neighbor. Love therefore is the fulfillment of the law.
A new commandment I give to you, that you love one another, just like I have loved you; that you also love one another. By this everyone will know that you are my disciples, if you have love for one another."
Jesus answered, "The greatest is, 'Hear, Israel, the Lord our God, the Lord is one: you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength.' This is the first commandment. The second is like this, 'You shall love your neighbor as yourself.' There is no other commandment greater than these." The scribe said to him, "Truly, teacher, you have said well that he is one, and there is none other but he, and to love him with all the heart, and with all the understanding, with all the soul, and with all the strength, and to love his neighbor as himself, is more important than all whole burnt offerings and sacrifices."
Worthy.Bible » Commentaries » Matthew Henry Commentary » Commentary on 1 John 4
Commentary on 1 John 4 Matthew Henry Commentary
Chapter 4
In this chapter the apostle exhorts to try spirits (v. 1), gives a note to try by (v. 2, 3), shows who are of the world and who of God (v. 4-6), urges Christian love by divers considerations (v. 7-16), describes our love to God, and the effect of it (v. 17-21).
1Jo 4:1-3
The apostle, having said that God's dwelling in and with us may be known by the Spirit that he hath given us, intimates that that Spirit may be discerned and distinguished from other spirits that appear in the world; and so here,
1Jo 4:4-6
In these verses the apostle encourages the disciples against the fear and danger of this seducing antichristian spirit, and that by such methods as these:-
1Jo 4:7-13
As the Spirit of truth is known by doctrine (thus spirits are to be tried), it is known by love likewise; and so here follows a strong fervent exhortation to holy Christian love: Beloved, let us love one another, v. 7. The apostle would unite them in his love, that he might unite them in love to each other: "Beloved, I beseech you, by the love I bear to you, that you put on unfeigned mutual love.' This exhortation is pressed and urged with variety of argument: as,
1Jo 4:14-16
Since faith in Christ works love to God, and love to God must kindle love to the brethren, the apostle here confirms the prime article of the Christian faith as the foundation of such love. Here,
1Jo 4:17-21
The apostle, having thus excited and enforced sacred love from the great pattern and motive of it, the love that is and dwells in God himself, proceeds to recommend it further by other considerations; and he recommends it in both the branches of it, both as love to God, and love to our brother or Christian neighbour.