This is the disciple who is bearing witness about these things, and who has written these things, and we know that his testimony is true.
He who saw it has borne witness—his testimony is true, and he knows that he is telling the truth—that you also may believe.
And you also will bear witness, because you have been with me from the beginning.
Demetrius has received a good testimony from everyone, and from the truth itself. We also add our testimony, and you know that our testimony is true.
This is he who came by water and blood—Jesus Christ; not by the water only but by the water and the blood. And the Spirit is the one who testifies, because the Spirit is the truth.