3 For this is the charity of God, that we keep his commandments, and his commandments are not grievous.
4 For whatsoever is born of God overcomes the world; and this is the victory that overcomes the world, even our faith.
5 Who is he that overcomes the world, but he that believes that Jesus is the Son of God?
6 This is Jesus, the Christ, who came by water and blood; not by water only, but by water and blood. And the Spirit is he that bears witness, because the Spirit is the truth.
7 For there are three that bear witness in heaven, the Father, the Word, and the Holy Spirit; and these three are one.
8 And there are three that bear witness on earth, the Spirit and the water and the blood; and these three agree in one.
9 If we receive the witness of men, the witness of God is greater: for this is the witness of God which he has testified of his Son.