You have to feel a little sorry for Nicodemus as he is portrayed in John 3. He comes in the dark to have a conversation with Jesus and, it seems, leaves very much in the dark as well. Jesus makes statements which don't seem to have a lot to do with what Nicodemus wants to know. They just don't connect. It seems the trouble is that Nicodemus has his feet planted firmly on the ground while Jesus is on a whole different plane, a spiritual plane.
We sometimes do this with Jesus work as well. We want to pull it down to earth, to see it make some change in our lives, our physical challenges, right now. Jesus promises an eternal solution, which starts now, and extends into the spiritual realm. This Sunday, we will open God's word and study the passage which includes one of the most famous biblical texts: John 3:16.