Brian McLaren makes a great observation in The Church in the Emerging Culture. He said for years he believed and taught that the essential purpose of the gospel was to answer this question: How can an individual's soul be forgiven of its sins so it will go to Heaven after death? "But now I wonder if this gospel about how to get your soul into Heaven after death is really only a ghost of the real gospel." Dallas Willard calls it the "gospel of sin management."
The gospels have a broader scope than that. The gospel is kaleidscopic. It can't be reduced to one thing. Jesus used different metaphors to describe salvation depending on the uniqueness of the individual he was talking with.
We need new wineskins, new songs, new metaphors.