Charles Ellicott Commentary John 9:26

"They said therefore unto him, What did he to thee? How opened he thine eyes?" — John 9:26 (ASV)

Then they said to him again.—Failing to establish their denial of the fact, they repeat their questions about the means used. They hope, perhaps, to detect some difference in the accounts, or something they can interpret as a charge against our Lord; or, perhaps, as some have suggested, their repeated questions are merely to gain time or cover their retreat.

His honest boldness is too much for their craftiness. Their adjuration to speak as in God’s presence has been answered in a way they little expected, and the questions they now repeat are asked because they do not know what to say.