Gandalf does say it is "a verse long known in Elven-lore."
I would think it was composed by Noldorin Elves in the Second Age after they learned of Sauron's intention to use the One to dominate the Free Peoples of ME.
Gandalf's recitation to Frodo appears to be the only mention of the full verse in the books.
__________________
Music alone proves the existence of God.
|