Deism is more strictly the belief in a god that was the original cause and all that, but does not influence his creation, and the deist rejects scripture and any other revelation. Jan very much adheres to scripture as revelation, and I'm sure he has cited scripture as a source of understanding. So a deist he isn't. I would say his view is more panentheistic. But none of that should affect his grasp (or lack thereof) of logic etc.