By the fiat and absolutely authoritative command of God’s Word, all that exists now was then created out of nothing—creatio ex nihilo. Matter and energy are not, and never have been, co-extensive or co-eternal with God, as Aristotle (Physics, VIII), and other pagan cosmologies of the ancient world taught. The Bible does not reveal a God who brought the world into existence and produced order by some struggle with pre-existing chaotic matter. It was the absolute God who commanded the light into existence (Genesis 1:3). It was not God merely using His knowledge of chemistry and physics to make something into something else. It was a fiat act, one which defies explanation by those who are not God. Mankind cannot explain such a fiat act, nor do we need to.