John 9:1-3 As he passed by, he saw a man blind from his birth. And his disciples asked him, "Rabbi, who sinned, this man or his parents, that he was born blind?" Jesus answered, "It was not that this man sinned, or his parents, but that the works of God might be made manifest in him.
The point of the gospels is to tell the good news about Jesus,
so in any pericope, it would seem wise to keep the primary
focus on Jesus, although there are many interesting tangents,
for example, the whole question of being expelled from the synagogue
which is the equivalent of exile, and just short of killing your outright
a very serious punishment, and people with weak faith may find this
more than they could bear. Problem is that only God can look in the heart
to discern when weak faith lapses into unbelief.
The Pharisees are always interesting,
especially as they struggle with the question of how can
someone who is so much at odds with their teachings
do something that no old testament prophet had ever done.
The question is how could they reject a sign that was so obvious?
There are possibilities in the parents, for it would not be hard
to call them "modern" parents as they struggle with
the whole issue of parental responsibility.
These are just a few intersting tangents,
but I believe the heart of the text is found in Jesus answer
to the disciples question "who sinnned?"
This is happening so that the glory of God might be manifest.
One question that might be pursued is
how do we respond to God's manifest glory?
(which is somewhat tangential, but may shed some light on who Jesus is for us)
[our response ot the glory of God in Christ may lead us to act
like one or more of the characters in the text]