The simple fact that God is a self-revealing God and that he has revealed himself to man indicate the importance of our minds. For all God’s revelation is rational revelation, both his general revelation in nature and his special revelation in Scripture and in Christ.
[Psalm 19:1-4 shows that] God speaks to man through the created universe and proclaims his divine glory, although it is a message without words. The message is quite clear, however, and men who stifle this truth are guilty before God (Romans 1:18-21). Both these passages refer to God’s self-revelation through the created order. (p. 18) [There is] an assumed ability to of man to read what God has written in the universe. […] This correspondence is rationality. Christians believe that the common rationality between man’s mind and observable phenomena is due to the Creator who has expressed his mind in both.
The same essential correspondence is even more direct between the Bible and the Bible reader. For in and through Scripture, God has spoken, that is, communicated in words. One may perhaps say that if in nature God’s revelation is visualized, in Scripture it is verbalized, and in Christ it is both, for he is “the Word made flesh.” Now communication in words presupposes a mind which can understand and interpret them. For words are meaningless symbols until they are deciphered by an intelligent being. (19)
The Christian doctrine of revelation, far from making the human mind unnecessary, actually makes it indispensable and assigns to it its proper place. God has revealed himself in words to minds. His revelation is a rational revelation to rational creatures. Our duty is to receive his message, to submit to it, to seek to understand it and to relate it to the world in which we live.
-John Stott, Your Mind Matters, 18-20.