John 9:21

“But we don’t know how he now sees, and we don’t know who opened his eyes. Ask him; he’s of age. He will speak for himself.”

Treasury of Scripture Knowledge

But by what means he now seeth, we know not; or who hath opened his eyes, we know not: he is of age; ask him: he shall speak for himself.

Therefore they asked him, “Then how were your eyes opened?”