The Church has been responsible for the most inspiring Christmas music. They had the message to promote, the venues for the party, and the necessary cash to pay for it. Christmas music is terribly predictable; Mary, Joseph, shepherds, and angels are standard fare. How refreshing if you get an oratorio with a role for the devil.
Johann Sebastian Bach's Christmas Oratorio lay in musical archives for over 100 years. They were rediscovered around 1850. And music historians were amazed and dismayed: Bach had composed and used important parts of it before and plagiarized earlier compositions into the work. The originals, however, had very different texts, and these were not at all for Christmas or any liturgical use.