You have just conflated - to use one of your favourite terms - biology, physics and religion - and all wrongly.
Firstly, evolutionary biology does not attempt to explain the origins of matter. That is a question for physics. Secondly, it rests on the principle of natural selection - unquestioned now in science (although not in religion). Thirdly, the term supernatural, as applied to a theory like Creationism, is describing something above and outside the natural world - generally, a deity of some kind - that also directs or intervenes in the natural world. That view is not accepted today in mainstream biology, however appealing it is to those of a religious persuasion. Evolutionary biology describes how life evolves according to natural and empirically observable processes. The supernatural, as such, has no place in that theory (and it is no longer theory but accepted principle in science). So, clearly, evolutionary biologists do not "believe in the supernatural", anymore than you might consider yourself to be anything other than part of the natural world.