In school we sang ‘Oh Come all Yea Faithful’ in Latin. The part ‘Adeste Fidelis Laetae Triumphante’ we believed, referred to ‘lighting the Christmas tree.
(forgive my spelling, it’s been a lot of years since then;)
Not to be difficult but some of us got it drilled in secular Latin classes:
Adeste fideles, laiti, triumphantes
Venite, venite ad Bethehem,
Natum videte, regem angelorum.
Venite adoremus, venite adoremus,
Venite adoremus, dominus.
Good old case endings.
(Autocorrect is trying to play havoc with this! Pardon any leftover typos)
Lol!