John 9:18-20

¹⁸The Jews then did not believe concerning him, that he had been blind, and had received his sight, until they called the parents of him that had received his sight,

¹⁹And asked them, saying: Is this your son, who you say was born blind? How then doth he now see?

²⁰His parents answered them, and said: We know that this is our son, and that he was born blind: