The foundational issue in the Reformation of the church in the sixteenth century was the question of authority. Where was authoritative special revelation from God to be found upon earth?1 The Roman Catholic Church taught that there were two sources of special revelation: Scripture, and the tradition of the church. This church tradition had begun as oral traditions supposedly passed down to the church from the apostles. Eventually it came to mean anything that the church had declared, whether in its councils, its magisterium, or its pope (speaking ex cathedra). The Roman Catholic Church taught, then, a dual source for authority...