Natural revelation is perfectly clear. Men ought from it to know God and ought through it to see all other things as dependent on God. But only he who looks at nature through the mirror of Scripture does understand natural revelation for what it is. Furthermore, no one can see Scripture for what it is unless he is given the ability to do so by the regenerating power of the Holy Spirit. Only those who are taught of God see the Scriptures for what they are and therefore see the revelation of God in nature for what it is. To be taught of God is a “singular privilege” which God bestows only on his “elect whom he distinguishes from the human race as a whole.” As taught of God, the elect both understand the Bible as the Word of God, and interpret natural revelation through the Bible. The rest of mankind, not taking Scripture as the Word of God, in consequence also misinterpret the natural revelation of God.
– Cornelius Van Til, The Reformed Pastor and Modern Thought.