We accept this God upon Scriptural authority. In the Bible alone do we hear of such a God. Such a God, to be known at all, cannot be known otherwise than by virtue of His own voluntary revelation. He must therefore be known for what He is, and known to the extent that He is known, by authority alone. We do not first set out without God to find our highest philosophical concept in terms of which we think we can interpret reality and then call this highest concept divine. This was, as Windelband tells us, the process of the Greeks. This has been the process of all non-Christian thought. It is from this process of reasoning that we have been redeemed. On such a process of reasoning only a finite god can be discovered. It has been the nemesis of the history of the theistic proofs that this has been so frequently forgotten. Are we then left with a conflict between Faith and Reason? Have we no philosophical justification for the Christian position? Or are we to find a measure of satisfaction in the fact that others too, non-Christian scientists and philosophers as well as ourselves, have in the end to allow for some mystery in their system?
To all this we must humbly but confidently reply by saying that we have the best of philosophical justification for our position. It is not as though we are in a bad way and that we must seek for some comfort from others who are also in a bad way. We as Christians alone have a position that is philosophically defensible. The frank acceptance of our position on authority, which at first blush, because of our inveterate tendency to think along non-Christian lines, seems to involve the immediate and total rejection of all philosophy—this frank acceptance of authority is, philosophically, our very salvation. Psychologically, acceptance on authority precedes philosophical argument; but when, as epistemologically self-conscious grown-ups, we look into our own position, we discover that unless we may presuppose such a God as we have accepted on authority, the Moment will have no significance. The God that the philosophers of the ages have been looking for, a God in whom unity and diversity are equally ultimate, the “Unknown God,” is known to us by grace. It has been the quest of the ages to find an interpretative concept such as has been given us by grace.
– Cornelius Van Til, Common Grace and the Gospel p.14
It is therefore in Reformed thinking alone that we may expect to find anything like a consistently Christian philosophy of history. Romanism and Arminianism have virtually allowed that God’s counsel need not always and everywhere be taken as our principle of individuation. This is to give license to would-be autonomous man, permitting him to interpret reality apart from God. Reformed thinking, in contrast with this, has taken the doctrine of total depravity seriously. It knows that he who is dead in trespasses and sins lives in the valley of the blind, while yet he insists that he alone dwells in the light. It knows that the natural man receives not the things of God, whether in the field of science or in the field of religion. The Reformed believer knows that he himself has been taken out of a world of misinterpretation and placed in the world of truth by the initiative of God. He has had his own interpretation challenged at every point and is ready now, in obedience to God, to challenge the thinking and acting of sinful man at every place. He marvels that God has borne with him in his God-ignoring and therefore God-insulting endeavors in the field of philosophy and science as well as in the field of religion. He therefore feels compelled to challenge the interpretation the non-Christian gives, not merely of religion but of all other things as well.
– Cornelius Van Til, Common Grace and the Gospel p.12-13
The non-Christian scientist must be told that he is dealing with facts that belong to God. He must be told this, not merely in the interest of religion in the narrower sense of the term. He must be told this in the interest of science too, and of culture in general. He must be told that there would be no facts distinguishable from one another unless God had made them and made them thus. He must be told that no hypothesis would have any relevance or bearing on these same facts, except for the providence of God. He must be told that his own mind, with its principles of order, depends upon his being made in the image of God. And then he must be told that if it were not for God’s common grace he would go the full length of the principle of evil within him. He would finish iniquity and produce only war. His very acts of courtesy and kindness, his deeds of generosity, all his moral good is not to be explained, therefore, in terms of himself and the goodness of his nature but from God’s enabling him to do these things in spite of his sinful nature. “Will you not then repent in order to serve and worship the Creator more than the creature?”
– Cornelius Van Til, Common Grace and the Gospel p.165-166
The argument for the existence of God and for the truth of Christianity is objectively valid. We should not tone down the validity of this argument to the probability level. The argument may be poorly stated, and may never be adequately stated. But in itself the argument is absolutely sound. Christianity is the only reasonable position to hold. It is not merely as reasonable as other positions, or a bit more reasonable than other positions; it alone is the natural and reasonable position for man to take. By stating the argument as clearly as we can, we may be the agents of the Spirit in pressing the claims of God upon men. If we drop to the level of the merely probable truthfulness of Christian theism, we, to that extent, lower the claims of God upon men. This is, we believe, the sense of Calvin’s Institutes on the matter.
– Cornelius Van Til, Common Grace and the Gospel p.77
There are two ways of constructing a proof for the existence of God. These two ways are mutually exclusive. The one is in accord with the basic construction of Reformed theology; the other is destructive of it. The one begins with the presupposition of the existence of the triune God of the Scriptures. The other begins with the presupposition of man as ultimate.
The true theistic proofs undertake to show that the ideas of existence (ontological proof), of cause (cosmological proof), and purpose (teleological proof) are meaningless unless they presuppose the existence of God.
This involves interpreting human reason itself in terms of God. It involves saying that unless human reason regards itself as being what Scripture says it is, created in the image of God, that then it has no internal coherence.
– Cornelius Van Til, Common Grace and the Gospel p.218
The main point is that if man could look anywhere and not be confronted with the revelation of God then he could not sin in the biblical sense of the term. Sin is the breaking of the law of God. God confronts man everywhere. He cannot in the nature of the case confront man anywhere if he does not confront him everywhere. God is one; the law is one. If man could press one button on the radio of his experience and not hear the voice of God then he would always press that button and not the others. But man cannot even press the button of his own self-consciousness without hearing the requirement of God.
– Cornelius Van Til, Common Grace and the Gospel p.203
Thus we have the “relative good” in the “absolutely evil” and the “relatively evil” in the “absolutely good.” Neither the “absolutely evil” nor the “absolutely good” are epistemologically as self-conscious as they will be in the future. God’s favor rests upon the reprobate and God’s disfavor rests upon the elect to the extent that each lacks epistemological self-consciousness. In neither case is it God’s ultimate or final attitude, but in both cases it is a real attitude. As there is an “old man” in the believer, so there is an “old man” in the unbeliever. As there are the remnants of sin in the believer, so there are the remnants of the image of God in the unbeliever. And as the “old man” in the believer does not, in the least, detract from his status as believer, so the “old man” in the unbeliever does not, in the least, detract from his status as unbeliever. Each man is on the move.
– Cornelius Van Til, Common Grace and the Gospel p.109