ectypal.net

The different modes [unwritten, written] of revelation correspond to the maturity of the church as it grew from infancy to adulthood: in the time of the church’s infantile stammering, the living voice of God came directly (agraphon); later in the childhood of the church and under the guidance of the law, the living voice taught and made to write even as adolescents are taught and given lessons by the voice of a teacher. Now in the adult age of the church, we have the written Word and its doctrines to lead us.