John Calvin Commentary John 9:19

"and asked them, saying, Is this your son, who ye say was born blind? How then doth he now see?" — John 9:19 (ASV)

Is this your son? Not having succeeded in the former way, they now attempt another; but the Lord not only defeats their attempts in a wonderful manner, but even turns them to an opposite purpose. They do not merely ask a single question, but cunningly pose a multitude of interconnected questions, intending to prevent a reply. But out of a variety of entangled and captious questions, the parents of the blind man select only half of them, to which they reply: