In principle, to be sure, the Reformation idea of the universal priesthood of all believers meant that not only the clergy but also the laity, not only the theologian but also the magistrate, had the capacity to read, understand, and apply the teachings of the Bible. Yet one of the contributions of the sacred philology of the biblical humanists to the Reformation was an insistence that, in practice, often contradicted the notion of the universal priesthood: the Bible had to be understood on the basis of the authentic original text, written in Hebrew and Greek which, most of the time, only clergy and theologians could comprehend properly. Thus the scholarly authority of the Reformation clergy replaced the priestly authority of the medieval clergy.