4:7 Dear friends, let us love one another, because love is from God, and everyone who loves has been fathered by God and knows God. 4:8 The person who does not love does not know God, because God is love. 4:9 By this the love of God is revealed in us: that God has sent his one and only Son into the world so that we may live through him. 4:10 In this is love: not that we have loved God, but that he loved us and sent his Son to be the atoning sacrifice for our sins.
4:11 Dear friends, if God so loved us, then we also ought to love one another. 4:12 No one has seen God at any time. If we love one another, God resides in us, and his love is perfected in us.
4:20 If anyone says “I love God” and yet hates his fellow Christian, he is a liar, because the one who does not love his fellow Christian whom he has seen cannot love God whom he has not seen. 4:21 And the commandment we have from him is this: that the one who loves God should love his fellow Christian too.