Hmh... it does seem rather strange that a school would approve such a club. But non the less Christian, Satanic, Muslim or whatever you are by religion, it's not a problem to believe in what you believe. As long as you don't harm anybody or brake the law, a religion is something you need to survive, a man without faith(no matter what faith) isn't fully alive. But still I should say that getting too involved in anything is bad for your health, no matter if it's satanism, christianity, french fries or fizzy drinks:). If you know where to stop it's not a crime no matter how you look at it.
I just have to ask is there really someone who truly and deeply believes that God is a bright light, that for seven days created what we call the Universe. I my self believe(as I said it's too hard to live without faith) that there should be something like a guiding force, but I can't quite except the idea of God as described(even if not very detailed) in the Bible.
Neither Christians nor Jews believe this. Not sure what religious group you may be thinking of.