This happened so the power of God could be seen in him - John 9:3
Jesus' disciples believed bad things happen to bad people
Jesus quickly corrected their faulty thinking by denying the man's blindness had anything to do with anyone's sin
This blindness was to be one day used to bring the people's attention to Jesus' devine power and authority
When blind man obeyed Jesus, he was able to see for the first time in his life
Jesus' miracle changed the disciples' notions about God and how he works through human circumstances