1 John 5:1-6 RSV

1 Every one who believes that Jesus is the Christ is a child of God, and every one who loves the parent loves the child.
2 By this we know that we love the children of God, when we love God and obey his commandments.
3 For this is the love of God, that we keep his commandments. And his commandments are not burdensome.
4 For whatever is born of God overcomes the world; and this is the victory that overcomes the world, our faith.
5 Who is it that overcomes the world but he who believes that Jesus is the Son of God?
6 This is he who came by water and blood, Jesus Christ, not with the water only but with the water and the blood.