The words to the song "Silent Night" has already changed over the years, perhaps multiple times.
I've always loved collecting old books. According to a 1948 Christmas book I acquired, the song "Silent Night" was first sung in 1818 on Christmas Eve at a small church in Oberndorf, Austria. It had been composed for the service only a few hours before by the priest, Joseph Mohr, and the church organist, Franz Gruber. The original words to the song were:
Silent night, holy night, Guiding star, lend thy light!
See the eastern wisemen bring Gifts and hom-age to our King!
Jesus the Savior is here! Jesus the Savior is here!