'Testimony' in the Bible

And what he hath seen and heard, that he testifieth; and no man receiveth his testimony.

He that hath received his testimony hath set to his seal that God is true.

But I receive not testimony from man: but these things I say, that ye might be saved.

It is also written in your law, that the testimony of two men is true.

This is the disciple which testifieth of these things, and wrote these things: and we know that his testimony is true.