1 John 5:5-9
5Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?
6This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood. And it is the Spirit that beareth witness, because the Spirit is truth.
7For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.
8And there are three that bear witness in earth, the spirit, and the water, and the blood: and these three agree in one.
9If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.
(KJV)