This, of course, means that in the long run, Christianity has only one really formidable opponent namely, pantheism. What so gloriously distinguishes Lewis from sundry other academics is that his Christian writings transcend mere scholarliness both by deliberately addressing laypeople without advanced or specialized academic background and by earnestly contending for the faith once delivered to the saints. The Christian idea is quite different. They think God invented and made the universe like a man making a picture or composing a tune. As C.S. Lewis notes, the fundamental difference between the damned nonsense of pantheism and the biblical Christian world view centers precisely upon belief or non-belief in God as the Creator of all things ex nihilo.
Evolutionism is pan and parcel of pantheism and has been so from earliest antiquity.
In the latter any distinction between atheism and pantheism is in the last analysis meaningless and irrelevant, for both atheism and pantheism deny the existence of the personal, transcendent God above and apart from the world. Now Christians can boldly claim that pantheism is damned nonsense because it is unable to account for observed, factual reality, and is unable to do so due to its own chief presuppositions. We observe plainly today the collapse of the Darwinist branch of evolutionism. The multitude of impossibilities, inaccuracies, and sheer speculations within Darwinian models, long exposed by creationist scientists, is now admitted by increasing numbers of evolutionist scientists themselves. However, attempts to undergird Such fancies scientifically are bound to fail.