His parents answered them and said, We know that this is our son, and that he was born blind:
All Commentaries on John 9:20 Go To John 9
Theophylact of Ochrid
AD 1107
The Pharisees had put three questions to the parents of the blind man: “Is he your son? Was he born blind? And how did he gain his sight?” To the first two they assert: “He is our son, and he was born blind.” Concerning how he was healed they are silent, because they do not know. Without doubt this took place for the greater confirmation of the truth; for the man who received the benefit of the miracle, and was the most credible of all the witnesses, said exactly the same. Then the parents add, “He is of age; he is not an infant, or so immature as not to understand how he was healed.” These words spake his parents, because they feared the Jews. They were still weak in faith and more faint-hearted than their son, who proved to be a steadfast witness to the truth. As a reward, God also illumined the eyes of his mind.