"All Scripture is inspired by God and profitable for teaching, for reproof, for correction, for training in righteousness; that the man of God may be adequate, equipped for every good work." (ll Tim. 3:16-17).
Few passages in the Bible are better known than the one quoted above. It has served as a rallying cry against religious liberalism and is quoted by nearly every Presbytery candidate as a proof text for the Bible's claim to be the inspired word of God. It is the biblical and intellectual basis for Luther's Reformation platform of Sola Scriptura.