'Who Testifies' in the Bible

Like a club or a sword or a sharp arrow, so is the one who testifies against his neighbor as a false witness.

There is another who testifies about me, and I know the testimony he testifies about me is true.

This is the disciple who testifies about these things and has written these things, and we know that his testimony is true.

Jesus Christ is the one who came by water and blood -- 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.

The one who testifies to these things says, "Yes, I am coming soon!" Amen! Come, Lord Jesus!