Heidegger’s philosophy is neither atheism nor theism, but a description of the world from which God is absent.

So much enthusiasm about the non-existence of God is somewhat bewildering, as no one appears to be nearly as excited about a similar absence of belief in unicorns, vampires, werewolves, astrology, nation-building, or the Labor Theory of Value. Nor is anyone dedicating much of their time to writing books and giving speeches at universities and conferences with the avowed goal of convincing others not to believe in them either.

No man will say, "There is no God" 'till he is so hardened in sin that it has
become his interest that there should be none to call him to account.

Since science is essentially objective, involving the study of how things actually are, "materialism" would therefore seem to be its antithesis, since its starting point is the desire to impose upon the natural world a particular and limited way of looking at it.

A few years ago the Deists denied the inspiration of the Bible on account of its cruelty. At the same time they worshiped what they were pleased to call the God of Nature. Now we are convinced that Nature is as cruel as the Bible; so that, if the God of Nature did not write the Bible, this God at least has caused earthquakes and pestilence and famine, and this God has allowed millions of his children to destroy one another. So that now we have arrived at the question -- not as to whether the Bible is inspired and not as to whether Jehovah is the real God, but whether there is a God or not.

Naturalism is the view that the physical world is a self-contained system that works by blind, unbroken natural laws. Naturalism doesn't come right out and say there's nothing beyond nature. Rather, it says that nothing beyond nature could have any conceivable relevance to what happens in nature. Naturalism's answer to theism is not atheism but benign neglect. People are welcome to believe in God, though not a God who makes a difference in the natural order.