1st John 5:7

4 For whatsoever is begotten of God overcometh the world: and this is the victory that hath overcome the world, [even] our faith.

5 And who is he that overcometh the world, but he that believeth that Jesus is the Son of God?

6 This is he that came by water and blood, [even] Jesus Christ; not with the water only, but with the water and with the blood.

7 And it is the Spirit that beareth witness, because the Spirit is the truth.

8 For there are three who bear witness, the Spirit, and the water, and the blood: and the three agree in one.

9 If we receive the witness of men, the witness of God is greater: for the witness of God is this, that he hath borne witness concerning his Son.

10 He that believeth on the Son of God hath the witness in him: he that believeth not God hath made him a liar; because he hath not believed in the witness that God hath borne concerning his Son.