Reformation
Initially the Protestant Reformers maintained the hope that they could accomplish the reformation of the doctrine and life of the church from within, but this proved impossible because of the intransigence of the church, the polemic of the Protestant movements, or the political and cultural situation—or because of all of these factors. The several parties of the Reformation may be conveniently classified according to the extent of their protest against medieval theology, piety, and polity. The Anglican Reformers, as well as Martin Luther and his movement, were, in general, the most conservative in their treatment of the Roman Catholic tradition; John Calvin and his followers were less conservative; the Anabaptists and related groups were least conservative of all. Despite their deep differences, almost all the various Reformation movements were characterized by an emphasis upon the Bible, as distinguished from the church or its tradition, as the authority in religion; by an insistence upon the sovereignty of free grace in the forgiveness of sins; by a stress upon faith alone, without works, as the preconditions of acceptance with God; and by the demand that the laity assume a more significant place in both the work and the worship of the church.
The Reformation envisaged neither schism within the church nor the dissolution of the Christian culture that had developed for more than a millennium. But when the Reformation was over, both the church and the culture had been radically transformed. In part this transformation was the effect of the Reformation; in part it was the cause of the Reformation. The voyages of discovery, the beginnings of a capitalist economy, the rise of modern nationalism, the dawn of the scientific age, the culture of the Renaissance—all these factors, and others besides, helped to break up the “medieval synthesis.” Among these factors, however, the Reformation was one of the most important and, certainly for the history of Christianity, the most significant. For the consequences of the Reformation, not in intention but in fact, were a divided Christendom and a secularized West. Roman Catholicism, no less than Protestantism, has developed historically in the modern world as an effort to adapt historic forms to the implications of these consequences. Established Christianity, as it had been known in the West since the 4th century, ended after the Reformation, though not everywhere at once.