That's just JLB, afaik, but even then Blind Faith isn't all about religion. Even Myung tends to shy away from just religion. They are inspired by religion maybe, but their songs tend to have a larger basis than just that.
ITNOG was written by JP, but still. I remember reading somewhere JP said religion does play a big role in a lot of things he writes. Having said that though, it's still done in a way where it can be interpreted many different ways (and often the explanations he gives have nothing to do with religion anyway).
But, I've heard an interview mentioned several times where James actually explains the meaning of BF, but can't find it anywhere. Does anyone have a quote?