Albert Barnes Commentary John 9:15

"Again therefore the Pharisees also asked him how he received his sight. And he said unto them, He put clay upon mine eyes, and I washed, and I see." — John 9:15 (ASV)

The Pharisees asked him how, and so on. The proper question to have been asked in the case was whether he had in fact done it, and not in what way. The question, also, about a sinner's conversion is whether in fact it has been done, and not about the mode or manner in which it is effected; yet it is remarkable that no small part of the disputes and inquiries among people are about the mode in which the Spirit renews the heart, and not about the evidence that it is done.