Probably the best way to describe this concept of modern theology is to say that it is faith in faith, rather than faith directed to an object which is actually there. Some years ago at a number of universities I spoke on the topic, ‘Faith v. faith,’ speaking on he contrast between Chrsitian faith and modern faith. The same word, faith, is used, but it has an opposite meaning. Modern man cannot talk about the object of his faith, only about the faith itself. So he can discuss the existence of his faith and its ‘size’ as it exists against all reason, but that is all. Modern man’s faith turns inward.
In Christianity the value of faith depends upon the object towards which the faith is directed. So it looks outward to the God who is there, and to the Christ who in history died upon the cross once for all, finished the work of atonement, and on the third day rose again in space and in time. This makes Christian faith open to discussion and verification. —Francis Schaeffer, The God Who Is There