Classical theism is the conception of God that has historically been the mainstream view within Christian, Jewish, and Islamic theology, and also within philosophical theology and philosophy of religion. It is the official and irreformable teaching of the Catholic Church. And it is very different from the conception of God that is taken for granted in most contemporary debate over “Intelligent Design” theory, the “New Atheism,” and the work of philosophers of religion like Plantinga and Swinburne. Anyone who rejects theism as such had therefore better know something about classical theism. And yet most contemporary atheist philosophers – including Keith Parsons, who recently made a big show of his abandonment of philosophy of religion as unworthy of any of his further attention – evince little if any awareness of what classical theism is or how it differs from other conceptions of God.
So what is classical theism? I provide a rough guide over at my own blog.