“And his disciples asked him, saying, Master, who did sin, this man, or his parents, that he was born blind?”
King James Version (KJV)
9:2 Who sinned, this man or his parents, that he was born blind? - That is, was it for his own sins, or the sins of his parents? They suppose (as many of the Jews did, though without any ground from Scripture) that he might have sinned in a pre - existent state, before he came into the world.
Joh 9:2 Master, who did sin? Many of our misfortunes and physical ills are brought on us either by our own sins, or are inherited from parents and caused by their sins. The disciples ask if the blindness is a judgment, and who caused it? They were, perhaps, not aware that he was blind from birth.