John 9:17-21

¹⁷So they address the blind man again, “What do you say about him, in that he opened your eyes?” He said, “He is a prophet.”

¹⁸However the Jews did not believe concerning him that he was blind and received sight until they summoned the parents of the one who had received sight.

¹⁹And they asked them saying: “Is this your son, whom you say was born blind? How then does he now see?”

²⁰So his parents answered them and said: “We know that this is our son, and that he was born blind;

²¹but by what means he now sees we don't know, or who opened his eyes we don't know. He is of age. Ask him. He will speak for himself.”