“Jesus answered, Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him.”
King James Version (KJV)
9:3 Jesus answered, Neither hath this man sinned, nor his parents - It was not the manner of our Lord to answer any questions that were of no use, but to gratify an idle curiosity. Therefore he determines nothing concerning this. The scope of his answer is, It was neither for any sins of his own, nor yet of his parents; but that the power of God might be displayed.
Joh 9:3 Neither hath this man sinned, nor his parents. Jesus does not affirm that they were sinless, but that their sins were not the cause of the calamity. We are not justified in asserting that the sufferer is a sinner. Job, Christ, Paul, and the whole army of martyrs disprove it. But that the works of God should be made manifest in him. By his miraculous cure the work of God shall be made manifest. It is the work of God to believe on Christ (Joh 6:29), and the blindness of this man was the occasion of faith being produced, not only in him, but others. Thus Christ shows a nobler use of suffering. "The Father chasteneth every son whom he loveth" (Heb 12:6).