Read the Hyperion Cantos from Dan Simmons.
A sci-fi tale loosely based (at least in framework) on the Canterbury Tales.  In the 3rd and 4th books (a bastardization of) Christianity becomes the focus.  Becomes a story of faith vs organized religion.  Don't know if it matches what you are looking for but a brilliant read either way.
I cannot recommend it highly enough.
Good luck.