First John 4:19--5:4

19 Let us love, then, because he first loved us.

20 Anyone who says 'I love God' and hates his brother, is a liar, since whoever does not love the brother whom he can see cannot love God whom he has not seen.

21 Indeed this is the commandment we have received from him, that whoever loves God, must also love his brother.

1 Whoever believes that Jesus is the Christ is a child of God, and whoever loves the father loves the son.

2 In this way we know that we love God's children, when we love God and keep his commandments.

3 This is what the love of God is: keeping his commandments. Nor are his commandments burdensome,

4 because every child of God overcomes the world. And this is the victory that has overcome the world -- our faith.