Jesus therefore answered them, "Most assuredly, I tell you, the Son can do nothing of himself, but what he sees the Father doing. For whatever things he does, these the Son also does likewise.
So I, if I would witness of myself, it would be acceptable. But John bore witness of Me, and you went out and you heard him and you were satisfied to walk in the light that he brought. But he said, "I do not even except the witness of John as the final proof of who I am."