For me personally, as a conservative Orthodox Christian, the Bible is not literature as such. Any Literature has an author, and God himself gave us Bilia. Therefore, the Bible does not belong to any kind of literature, so there is no need to choose between the Bible and the Lord of the Rings. For me, the best book is the Lord of the Rings, but the Bible is naturally closer to the soul. Although many people disagree with me. For example, on my favorite forum on Tolkien's books [thetolkienforum.com] many people objected to me.

Both are equally stupid time-wasters.
And I have read it 3 times just so I can annoy bible-thumpers with contradictory verses (except for the Begats, of course)

The Lord Of The Rings has a big advantage which is also one big disadvantage over the Buy-Babble. In that it is a written text, with an author who intended it to be entertaining, logical and understandable. Where the Buy-Babble had no author, but was edited together by a number of committees, over several centuries, from scraps of many different texts, by many different authors and centuries, some complete and some not, many badly copied and none from originals.

So that if you used LOTR as a holy text then you could be asked. "But is that what Tolkien really meant ?" Whereas with the Bible you can find a part of the text which supports whatever you wish, interpret it how how wish, and then claim that your wishes are sacred perfect and unquestionable , and that is the key to why the Bible is a popular holy book, and LOTR is a popular read.

I Think that it is best not to set up any text written by humans as an infallible god. There is really no difference between the worship of an invisible sky daddy who is perfect and beyond question, and the worship of a text which will soon be seen as perfect and beyond question.

the tales of Peter rabbit.