This 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 bears witness, because the Spirit is truth.
All Commentaries on 1 John 5:6 Go To 1 John 5
On Re-Baptism (Anonymous)
AD 300
For John says of our Lord in his epistle, teaching us: "This is He who came by water and blood, Jesus Christ; not by water only, but by water and blood: and it is the Spirit that beareth witness, because the Spirit is truth. For three bear witness, the Spirit, and the water, and the blood: and these three are one; "