Official efforts to reform state churches in the eighteenth century were confronted by a wave of religious enthusiasm from below. By the late seventeenth century, the vast transformations of the Protestant Reformation were complete and had been widely adopted in most Protestant churches. Medieval practices of idolatry, saint worship, and pageantry were abolished; stained-glass windows were smashed and murals whitewashed. Yet many official Protestant churches had settled into a smug complacency. This, along with the growth of state power and bureaucracy in local parishes, threatened to eclipse one of the Reformation’s main goals — to bring all believers closer to God.

In the Reformation heartland, one concerned German minister wrote that the Lutheran Church “had become paralyzed in forms of dead doctrinal conformity” and badly needed a return to its original inspiration.9 His voice was one of many that prepared and then guided a Protestant revival that succeeded because it answered the intense but increasingly unsatisfied needs of common people.

The Protestant revival began in Germany in the late seventeenth century. It was known as Pietism (PIE-uh-tih-zum), and three aspects helped explain its powerful appeal. First, Pietism called for a warm, emotional religion that everyone could experience. Enthusiasm — in prayer, in worship, in preaching, in life itself — was the key concept.

Second, Pietism reasserted the earlier radical stress on the priesthood of all believers, thereby reducing the gulf between official clergy and Lutheran laity. Pietists also believed in the practical power of Christian rebirth in everyday affairs. Reborn Christians were expected to lead good, moral lives and to come from all social classes.

Pietism soon spread through the German-speaking lands and to Scandinavia. It also had a major impact on John Wesley (1703–1791), who served as the catalyst for popular religious revival in England. When Wesley went to Oxford University to prepare for the clergy, he mapped a fanatically earnest “scheme of religion.” At Oxford, he organized a Holy Club for similarly minded students, who were soon known contemptuously as Methodists because they were so methodical in their devotion. Yet like the young Martin Luther, Wesley remained intensely troubled about his own salvation even after his ordination as an Anglican priest in 1728.

Wesley’s anxieties related to grave problems of the faith in England. The government shamelessly used the Church of England to provide favorites with high-paying jobs. Both church and state officials failed to respond to the spiritual needs of the people, and services and sermons had settled into an uninspiring routine. Enlightenment skepticism was making inroads among the educated classes, and deism — a belief in God but not in organized religion — was becoming popular.

Wesley’s inner search in the 1730s was deeply affected by his encounter with Moravian Pietists, whose inspirational example and spiritual counseling led to a mystical, emotional “conversion” in 1738. This emotional experience resolved Wesley’s intellectual doubts about the possibility of his own salvation. He was convinced that any person, no matter how poor or uneducated, might have a similarly heartfelt conversion and gain the same blessed assurance. He took the good news to the people, traveling some 225,000 miles by horseback and preaching more than forty thousand sermons between 1750 and 1790. Because existing churches were often overcrowded and the church-state establishment was hostile, Wesley preached in open fields. People came in large numbers. Of critical importance was Wesley’s rejection of Calvinist predestination — the doctrine of salvation granted to only a select few. Instead, he preached that all men and women who earnestly sought salvation might be saved. It was a message of hope and joy, of free will and universal salvation.

Wesley’s ministry eventually resulted in a new denomination. And just as Wesley had been inspired by the Pietist revival in Germany, so evangelicals in the Church of England and the old dissenting groups now followed Wesley’s example of preaching to all people, giving impetus to an even broader awakening among the lower classes. Thus, in Protestant countries, religion continued to be a vital force in the lives of the people.