John 9:17-19

¹⁷They say therefore again to the blind man, What dost thou say of him, that he has opened thine eyes? And he said, He is a prophet.

¹⁸The Jews therefore did not believe concerning him that he was blind and had received sight, until they had called the parents of him that had received sight.

¹⁹And they asked them saying, This is your son, of whom ye say that he was born blind: how then does he now see?