What he hath seen and heard, of that he beareth witness; and no man receiveth his witness.
And what he hath seen and heard, that he testifieth; and no man receiveth his testimony.
It is to what He has [actually] seen and heard that He bears testimony, and yet no one accepts His testimony [no one receives His evidence as true].
He testifies to what he has seen and heard, but no one accepts his testimony.
And what he has seen and heard, about this he testifies. And no one accepts his testimony.