I, along with many people -- most people, perhaps -- view Handel's Messiah as a Christmas piece. It's not: it covers the foretelling of Jesus, his birth, death, resurrection and return. In fact, the "Hallelujah Chorus" occurs in Part II, which deals with his life, death, resurrection, and ascension, not his birth.
Likewise, I have always thought of the musical Godspell as having an Easter theme. But, given that it is based on the Gospel of Matthew, it too deals with the entirety of Jesus' life. All of which is to say, I just realized that "Prepare Ye" is really a Christmas song.
Time to update my holiday playlist.