親愛的弟兄阿，我們應當彼此相愛，因為愛是從神來的。凡有愛心的，都是由神而生，並且認識神。沒有愛心的，就不認識神，因為神就是愛。神差他獨生子到世間來，使我們藉著他得生，神愛我們的心在此就顯明了。不是我們愛神，乃是神愛我們，差他的兒子為我們的罪作了挽回祭，這就是愛了。親愛的弟兄阿，神既是這樣愛我們，我們也當彼此相愛。從來沒有人見過神，我們若彼此相愛，神就住在我們裡面，愛他的心在我們裡面得以完全了。神將他的靈賜給我們，從此就知道我們是住在他裡面，他也住在我們裡面。父差子作世人的救主；這是我們所看見且作見證的。凡認耶穌為神兒子的，神就住在他裡面，他也住在神裡面。神愛我們的心，我們也知道也信。神就是愛；住在愛裡面的，就是住在神裡面，神也住在他裡面。這樣，愛在我們裡面得以完全，我們就可以在審判的日子坦然無懼。因為他如何，我們在這世上也如何。愛裡沒有懼怕；愛既完全，就把懼怕除去。因為懼怕裡含著刑罰，懼怕的人在愛裡未得完全。我們愛，因為神先愛我們。人若說我愛神，卻恨他的弟兄，就是說謊話的；不愛他所看見的弟兄，就不能愛沒有看見的神（有古卷作：怎能愛沒有看見的神呢）。愛神的，也當愛弟兄，這是我們從神所受的命令。凡信耶穌是基督的，都是從神而生，凡愛生他之神的，也必愛從神生的。我們若愛神，又遵守他的誡命，從此就知道我們愛神的兒女。（約翰壹書 4:7-5:2）
Beloved, let us love one another: for love is of God; and every one that loves is born of God, and knows God. He that loves not knows not God; for God is love. In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him. Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins. Beloved, if God so loved us, we ought also to love one another. No man has seen God at any time. If we love one another, God dwells in us, and his love is perfected in us. Hereby know we that we dwell in him, and he in us, because he has given us of his Spirit. And we have seen and do testify that the Father sent the Son to be the Savior of the world.Whoever shall confess that Jesus is the Son of God, God dwells in him, and he in God. And we have known and believed the love that God has to us. God is love; and he that dwells in love dwells in God, and God in him. Herein is our love made perfect, that we may have boldness in the day of judgment: because as he is, so are we in this world. There is no fear in love; but perfect love casts out fear: because fear has torment. He that fears is not made perfect in love. We love him, because he first loved us. If a man say, I love God, and hates his brother, he is a liar: for he that loves not his brother whom he has seen, how can he love God whom he has not seen? And this commandment have we from him, That he who loves God love his brother also.Whoever believes that Jesus is the Christ is born of God: and every one that loves him that begat loves him also that is begotten of him. By this we know that we love the children of God, when we love God, and keep his commandments.