“For thus says the LORD, who created the heavens (He is God!), who formed the earth and made it (He established it; He did not create it empty, He formed it to be inhabited!): ‘I am the LORD, and there is no other‘” (Isaiah 45:18).
I think the verse above is one of the most beautiful in Scripture. But more than its beauty is its fullness. In just two sentences, it defines and applies all of natural theology, i. e., what we can know about God from the Creation.
The Prophet here repeats some of what we already know from Genesis 1. Like Moses, Isaiah begins with God. However, he tells us more than Moses did. He specifies that it is Yahweh who is doing the creating. We know from other places that Yahweh is the name of the pre-incarnate Christ. Thus, the Prophet is telling us what Paul would later repeat: “By Him [i. e., Christ] all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities—all things were created through Him and for Him” (Colossians 1:16).
Then Isaiah announces – twice! – that the events he is describing show that He is God! And we know from the rest of Scripture that He is God the Son. He made the whole physical universe, thus excluding even the possibility of other gods. And He created purposefully! God’s interest has never been in dirt and grass. The goal toward which His work of creation was aimed was always Adam, and in him, the rest of the human race. Where Moses built up step by step to the crowning creation of man, Isaiah makes straight to the point: The creation came into existence not for its own sake, but as the ideal home for mankind. To state that truth is to pronounce doxology, as we see from Isaiah!
There is also a significant philosophical declaration in Isaiah: the creation was purposeful, with mankind as the goal, bringing into creation the image of God. In contrast, the humanistic philosophy of evolution claims that all occurred by chance, including the coming of man, so that a man has no more significance than a flea, or a weed, or a rock.
That distinction has consequences. For example, because of our understanding of man as the image bearer, it has been Christians historically who have built schools and hospitals. Education and medical care make no sense if men are merely a random and temporary conglomeration of chemicals.
There is also an apologetical element in Isiah’s statement. The atheist thinks that he is clever when he demands proof for the existence and goodness of the biblical God. The Christian knows that all that the atheist claims for evolution actually points to God. and the Scriptures tell us that the atheist knows this, too, but has suppressed that knowledge (Romans 1:18-21).