I've been pondering, since Christmas Eve. At our church we have a service of carols before the regular Christmas service. A half hour of caroling. I loved it. Even if I did almost lose my voice before the regular service.
It is not "Good Christian Folk rejoice", it is "Good Christian Men rejoice". And God rest ye, merry Gentlemen.
From my time playing guitar and singing I memorized all the real words. And I get off track when the words are all messed up and made politically correct.
The Book of Common Prayer does the same thing with the Lord's Prayer. There is the "real" version and the modern one and we are supposed to alternate each week or so.
I have to confess, on the week for the modern one, I mumble the real one. Same with the songs. I sing the real traditional words, at half volumne.
Don't mess around with traditional lyrics and prayers.
There, I've had my say.