Just about all my life I belonged to the Reformed Lutheran Church.
  When I married my wife, I converted to her church, which at that time
  was called the Lutheran Church in America.  In order to do so, I had
  to attend classes.
    At one of the first sessions, the Minister conducting the class
  said, "What must we do before we can expect forgiveness from sin ?"
    I replied, perhaps too quickly, "Sin ???"