Walmart carried some religious fabric, good quality too, a couple of years ago. It can be found, it's just rather hard to find. I have some that I've been collecting for a Bible themed quilt. I'm not sure yet if I want to design a quilt based on the miracles of Jesus, His life, or His parables. Maybe even incorporate some of each.
Ktbb---that's because Hobby Lobby is a Christian based store. They give discounts if you're buying for church projects, aren't open on Sundays (or at least they didn't used to be), etc. I love their stores. They not only carry good fabric but someone really puts some effort into buying some fabulous prints.