[neaden]

Middle Earth doesn't have Christianity, and indeed the books really lack any real discussion of religion. God exists and so do angels, but there are no clergy or real religious rituals.

[inawarminister]

There are a lot of religious rituals... For Melkor and Sauron.

The Silmarrion in Finroth ad Adalabeth also mention Christianity in an allegorical form. Heh. Still, you're right.