John 9:39

And Jesus said, For judgment, &c.— In these words directed to the people who happened to be present, or to come up while Jesus was talking with the blind man, our Lord alluded to the cure lately performed; but his meaning was spiritual, representing not the design of his coming, but the effect which it would have on the minds of men. It would shew what character and disposition every man was of. The teachable and honest, though they were as much in the dark with respect to religion, and the knowledge of the scriptures, as the blind man had been with respect to the light of the sun, should be spiritually enlightened by his coming: whereas those who in their own opinion were wise, and learned, and clear-sighted, should appear to be, what they really were, blind, that is, quite ignorant and foolish.