“Reformed theology holds to the self-sufficiency of God without compromise. It therefore rejects every form of human autonomy. Only on the assumptions of divine self-sufficiency and man’s complete dependence upon God can the difference between the Christian and the non-Christian points of view be clearly made out. Only thus can the issue be clearly drawn. The non-Christian assumes that man is ultimate, that is, that he is not created. Christianity assumes that man is created. The non-Christian assumes that the facts of man’s environment are not created; the Christian assumes that these facts are created. The Christian has derived his convictions on these matters from Scripture as the infallible Word of God. As self-explanatory, God naturally speaks with absolute authority. It is Christ as God who speaks in the Bible. Therefore the Bible does not appeal to human reason as ultimate in order to justify what it says. It comes to the human being with absolute authority. Its claim is that human reason must itself be taken in the sense in which Scripture takes it, namely, as created by God and as therefore properly subject to the authority of God.”
– Cornelius Van Til, A Christian Theory of Knowledge p.14-15
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