I was listening to one of John Piper's sermons about the new birth, and jotted this quote down, which I found very challenging:

"Wouldn't you like it if the first thing that came into the world's mind is 'Christians go first,' instead of bigger houses, more boats, more stuff?!  Why wouldn't we be known that way?  It's because so many [in the church] are not born again.  Scary, right?  We're just worldly!"

More on this later...