I am not going to get into a discussion of the interpretation of the Van Til-Clark debate, and whether they were talking past each other or not. I am only going to address a small part of the discussion, namely, the difference between archetypal and ectypal knowledge, and whether this forms an area of common ground between God and man.
First, some definitions are in order. The archetypal/ectypal knowledge distinction is not by any means original with Van Til. It comes from Protestant Scholasticism. For instance, see the first few chapters of Markius’ Compendium Theologiae Christianae. Archetypal knowledge is the knowledge that God has. Ectypal knowledge is the knowledge that creatures have. The scholastics usually divided ectypal knowledge into the knowledge of angels and humans. Then human knowledge was further subdivided into the knowledge of man at creation, the knowledge of man as distorted by the Fall, the knowledge of the pilgrim, the knowledge of the blessed (glorified in heaven), and the knowledge of Christ as the God-man, Who had two knowledges, if you will, the archetypal knowledge of God according to the divine nature, and the knowledge of the hypostatic union as the God-man.
One of the points at issue, and the one most controverted, is whether God’s knowledge and man’s knowledge coincide at any point. Usually those of the Clarkian persuasion will say that of course it must coincide, or else we are doomed to complete skepticism and we cannot know anything correctly. Those who follow Van Til believe that such a coinciding would violate the Creator-creature distinction. Sometimes a quantitative/qualitative distinction is introduced here as well. Those of the Clarkian persuasion would say that God knows a greater number of thoughts than we do, but that there are at least some thoughts that God and man have in common. To put it in its most forceful way, wouldn’t God have to know all ectypal knowledge in order to be omniscient? If we look at a pencil, and can agree that a human knowledge of a pencil might extend to its molecular structure, wouldn’t God also have to know the way in which we know the pencil in order to be omniscient? Wouldn’t there be overlap precisely at that point between God’s knowledge and man’s knowledge? Van Til and his followers would claim that there is a qualitative distinction between God’s knowledge and man’s knowledge just as there is a qualitative difference between God’s being and our being.
So what am I adding to this conversation? I believe that there is a way beyond the forceful way of putting things that I mentioned. It has to do with the atomization of knowledge implied in Clark’s way of thinking. By putting the matter in quantitative terms, God’s thoughts, while infinite in number, are thought of as building blocks. They are discrete points in a matrix, if you will, that extend infinitely in all directions. But God’s knowledge cannot be atomized in this way. If Van Til is correct in his analysis of facts having both substance and context, then the holistic context of all things (and by this context I am NOT positing some sort of higher reality to which both God and creation belong), including Himself, is always the context for God knowing all things, including His knowledge of ectypal knowledge. We cannot atomize God’s knowledge of ectypal knowledge from the rest of God’s knowledge. That context is one that humans will never and can never share, since that context would include God Himself in all His fullness. God’s knowledge is whole, just like His being is a simple whole. The simplicity of God prevents our dividing God into pieces. Therefore, His knowledge must be likewise one whole.
So this formulation of things must also answer the objection: how can our knowledge be true at all? Are we doomed to skepticism? The answer is a simple no, because of God’s self-revelation to us in both nature and Scripture. We would be doomed to skepticism if God did not reveal Himself to us, because then we would have no test of knowledge given to us by God. This would also answer the possible charge that we have descended into Kantianism (the idea that we cannot know anything in the noumenal realm, but only believe). If God did not choose to reveal Himself to us, then we would indeed know nothing. However, revelation is God’s way of ensuring that we can know things rightly, even if in a limited creaturely way. God’s revelation is an anchor that tethers all human knowledge.
The other objection that must be answered is this: is God’s knowledge then the all-encompassing whole that everything belongs to? Do we lapse into a form of idealism by saying this? Again the answer is no, simply because God’s knowledge is distinct from creation itself, just as God’s being is distinct from creation. We cannot separate epistemology from ontology in our thinking.