Faith is concentrated on the historic realities of redemption and results in trust that these historic acts are God’s saving acts for us. It is the same Spirit that inspired the apostolic witness that now seals the truth of that witness in believers’ hearts. Christians submit to Scripture because they believe it is a divine word, a word from God…. The authority of Scripture, accepted in Spirit-inspired faith, is a powerful self-asserted authority. We believe it because God said it, and God’s speaking is the final ground of our faith. There is no power in the world comparable to that of Scripture.
Reformed Dogmatics Vol. 1: Prolegomena (Grand Rapids, Michigan; Baker Academic; 2003) p. 563.