It follows that the creeds of the church do not constitute deductive systems derived from the master concept of God. They are rather statements containing, so far as possible, all the various facets of truth about God and his relation to the world. There is coherence in these creeds, but it is not the coherence of deduction. The famous doctrine of the two natures of Christ as set forth in the Chalcedon creed exhibits the fact that the church was unwilling to submit the apparently contradictory materials of Scripture to the requirements of a deductive system.
Van Til, Defense of the Faith, 4th ed., 206.