Hitler's faith: The debate over Nazism and religion – Opinion – ABC Religion & Ethics (Australian Broadcasting Corporation): For this reason, some recent works have argued Hitler was a Deist. He famously argued in a major speech of 1938 that Nazism was "a volkisch-political doctrine that grew out of exclusively racist insights" and was based on the "sharpest scientific knowledge." Yet in this same speech he stated the Nazi "cult" was solely one which respected nature, and so that which was "divinely ordained."
Was Hitler an atheist? Probably not. But it remains very difficult to ascertain his personal religious beliefs, and the debate rages on. He was an astute propagandist, which makes distinguishing rhetoric from reality all the more difficult.
What historians continually confirm is that Hitler developed an absolute faith in two things: an extreme form of nationalism, and himself.