telpetari

Brand new here, but hoping to not named a newbie to Tolkien.
In regard to Tolkien writing about the monotheistic beleif system of the Elves and Men (meaning there is one main God, not refering to the Valar), Tolkien wrote a quote that follows as this: "God is the Lord of angels, of men-and of Elves". I was wondering which book that is in? I've seen it and I've searched through each book, but its not showing up. Does anyone else know where it is off hand?

If this is in the wrong place, forgive me. Again, I am new and I will move this to the correct forum.

Thank you.

Telpetari