7Beloved, let us love one another, for love is from God, and everyone who loves has been begotten of God and knows God.8The one who does not love did not know God, for God is love.9In this the love of God was revealed among us, that God has sent his only Son into the world so that we might live through him.10In this is love, not that we have loved God, but that he loved us and sent his Son as the propitiation for our sins.11Beloved, if God so loved us, we also ought to love one another.12No one has ever seen God. If we love one another, God remains in us and his love has been made perfect in us.13By this we know that we remain in him and he in us, because he has given us of his Spirit.14And we have seen and testify that the Father has sent the Son as Savior of the world.15Whoever confesses that Jesus is the Son of God, God remains in him and he in God.16And we have come to know and believe the love that God has for us. God is love, and whoever remains in love remains in God, and God remains in him.17In this love has been perfected with us, so that we may have confidence on the day of judgment, because as he is, so also are we in this world.18There is no fear in love, but perfect love casts out fear, because fear has to do with punishment; and the one who fears has not been made perfect in love.19We love because he first loved us.20If 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 the God whom he has not seen.21And this commandment we have from him, that whoever loves God must love his brother also.