While I consider myself to be Ignostic, I find lots of wisdom in religious texts. I am selective. I use what I consider useful and I reject what might go against logic/my values/is conflicting with itself…

Since I was raised christian I would study only bible (from religious texts) since I think there are enough wisdom in it to study for a lifetime.

However this would not be the only thing I would read. Most of the time I would read other books. Maybe some philosophical ones and if I would get a hand on some books from other religions I would probably read it.