But I receive not testimony from man: but these things I say, that ye might be saved.
But I receive not testimony from man - that is, I depend not on human testimony. That He should have permitted Himself to receive testimony from the Baptist, seemed to the Lord Jesus to need some explanation, lest it should be supposed that He stood in need of it, which therefore He here explicitly says He did not.
But these things I say, that ye might (or 'may') be saved. 'If I refer to John's testimony at all, it is but to aid your faith, in order to your salvation.'