When the disciples questioned Jesus, they were falling back on their Hebrew studies and the only two possible reasons that this man had been born blind. The first came from the Ten Commandments (Exodus 20:5) which said that God would judge sin to the 3rd or 4th generation, (which usually represented the longest span within any given household living under one roof together.) The other was the old familiar proverb, “The fathers eat sour grapes, and the children’s teeth are set on edge?” (Which was the Jewish exiles way of blaming the previous generation’s sins for all their current problems.) But Jesus instead offers a 3rd and extraordinary option…that this man had been born with a congenital defect in order that God’s glory might be shown through him that very day…a miraculous healing that no one who knew him could ever deny.