Expositor's Bible Commentary Commentary John 9:20

"His parents answered and said, We know that this is our son, and that he was born blind:" — John 9:20 (ASV)

The evidence was still insufficient to remove the objections of “the Jews” (a phrase here synonymous with “the Pharisees”). They proceeded to query whether the man really had been born blind; for if he had not been blind from birth, the miracle could be disputed. They also interrogated his parents, who, fearing excommunication from the synagogue, evaded the issue by stating that their son was an adult capable of answering for himself.