Perhaps the most significant passage in Scripture explaining the power of awakened (or illuminated) literacy is found in 2 Corinthians 4:6, and it’s particularly interesting given the parallels:
For God, who said, “Let light shine out of darkness” [first creation], has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ [new creation].
Gospel awakening is an act of new creation finding its appropriate parallel in the initial act of cosmic creation. And just about everyone from Matthew Henry onward has acknowledged this. But the context of this passage has everything to do with reading (2 Cor. 3:15). If we ourselves read over this too quickly we can miss is how new creation illumination, enacted by God on a spiritually dead heart, brings with it a permanent and abiding change to the literacy faculties.
But Christian literacy is more than mere noetic intellectual awakening because, in Christ, Christian literacy is God-appointed means for the regenerated soul to live and move and have its being. Scripture itself takes on new meaning and significance to us, it begins to live, it affects us, it begins to claim us, and it begins to change our behaviors and attitudes. This is a key point Karl Barth understands and well articulates in Church Dogmatics (IV/3.2, §71.2):
“In thy light shall we see light” (Ps. 36:9)… There is a god of this world — we are reminded of the darkness in Col. 1:13 — who has darkened the thinking of unbelievers “lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them” (2 Cor. 4:4). To continue the quotation already adduced: “For it is the worst evil that can befall us not to see the light.” But the true “God, who commanded the light to shine out of darkness (Gen. 1:3), hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ” (2 Cor. 4:6). As His God, “the God of our Lord Jesus Christ,” He gives him “the spirit of wisdom and revelation” in which he may know him, “the eyes of your understanding being enlightened; that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints, and what is the exceeding greatness of his power to us-ward who believe,” in short, what is proffered to man and awaits him in Him (Eph. 1:17f), and what is the structure of the mystery concealed from all eternity in God the Creator of all things (Eph. 3:9). Man is called as this knowledge is imparted to him. By this knowledge Christians are distinguished as the called from others who are not called.
If we are to understand this process, however, we cannot pay too much attention to the fact that in it we really have to do with a new creation. According to the speech and thought-forms of the Bible, concepts such as light, illumination, revelation and knowledge do not have, either alone or in their interrelationships, the more narrowly intellectual or noetic significance which here as elsewhere we usually give them. The light or revelation of God is not just a declaration and interpretation of His being and action, His judgment and grace, His endowing, directing, promising and commanding presence and action.
In making Himself known, God acts on the whole man. Hence the knowledge of God given to man through his illumination is no mere apprehension and understanding of God’s being and action, nor as such a kind of intuitive contemplation. It is the claiming not only of his thinking but also of his willing and work, of the whole man, for God. It is his refashioning to be a theatre, witness and instrument of His acts. Its subject and content, which is also its origin, makes it an active knowledge, in which there are affirmation and negation, volition and decision, action and inaction, and in which man leaves certain old courses and enters and pursues new ones.
Illumination, we find out, is a sovereign act of God (in the gospel) in bringing new creation. It plays an important role for God in making his children’s lives into a theater, a witness, and an instrument for his own glory and use.
Here we discover one of the profoundest purposes for Christian literacy.