Children of God; water, blood, Spirit are one Son’s

…of God. For if as many as received the Son “he gave authority to become children of God,” as the evangelist says, those who have not received him would not be counted among God’s children, not having known the one through whom this exists.

“And who is the one who conquers the world if not the one who believes that Jesus is the Son of God? This is the one who came through water and blood, Jesus Christ — not in the water only, but in the water and the blood. And the Spirit is the one who testifies, because the Spirit is the truth. For there are three who testify: the Spirit and the water and the blood, and the three are the one.” The one who believes that Jesus is the Son of God conquers the world; and who Jesus is, the disciple himself makes clear to us saying: “This is the one who came through water and blood, Jesus Christ.” But he also speaks of blood and of Spirit, and says the three are the one. So the Word became flesh, and he sanctifies us by the Spirit, and cleanses by the blood, and washes again with clean water; and the Son is altogether one, whose we also say the Spirit and the water and the blood are.

“If we receive the testimony of humans, the testimony of God is greater, because this is the testimony of God, that he has testified about his Son. The one who believes in the Son of God has the testimony in himself; the one who does not believe God has made him a liar, because he has not believed in the testimony that he has testified about his Son.” And the Father has testified to the Son through the Spirit and through a voice. For that he is his Son according to…