The man (who had been born blind) by now was
really starting to speak up. "The man answered
and said unto them, Why herein is a marvellous
thing," (a great miracle had been performed)
John 9:30

"Since the world began was it not heard that
any man opened the eyes of one that was born
blind. (from the beginning of the world no one had
ever done this before)
If this man were not of God, he could do nothing."
John 32-33

The Pharisee couln't believe that now they were
the ones being questioned.