Catalyst of the Reformation

The Reformation movement within Germany diversified almost immediately, and other reform impulses arose independently of Luther. Huldrych Zwingli built a Christian theocracy in Zürich in which church and state joined for the service of God. Zwingli agreed with Luther in the centrality of the doctrine of justification by faith, but he espoused a different understanding of the Holy Communion.

Another group of reformers, often though not altogether correctly referred to as “radical reformers,” insisted that baptism be performed not on infants but on adults who had professed their faith in Jesus. Called Anabaptists, they remained a marginal phenomenon in the 16th century but survived—despite fierce persecution—as Mennonites and Hutterites into the 21st century.

Opponents of the ancient Trinitarian dogma made their appearance as well. Known as Socinians, after the name of their founder, they established flourishing congregations, especially in Poland.

Another important form of Protestantism (as those protesting against their suppressions were designated by the Diet of Speyer in 1529) is Calvinism, named for John Calvin, a French lawyer who fled France after his conversion to the Protestant cause. In Basel, Switzerland, Calvin brought out the first edition of his Institutes of the Christian Religion in 1536, the first systematic, theological treatise of the new reform movement.

Calvin agreed with Luther’s teaching on justification by faith. However, he found a more positive place for law within the Christian community than did Luther. 

In Geneva, Calvin was able to experiment with his ideal of a disciplined community of the elect. Calvin also stressed the doctrine of predestination and interpreted Holy Communion as a spiritual partaking of the body and blood of Christ. Calvin’s tradition merged eventually with Zwingli’s into the Reformed tradition, which was given theological expression by the (second) Helvetic Confession of 1561.

The Reformation spread to other European countries over the course of the 16th century. By mid century, Lutheranism dominated northern Europe. Eastern Europe offered a seedbed for even more radical varieties of Protestantism, because kings were weak, nobles strong, and cities few, and because religious pluralism had long existed. Spain and Italy were to be the great centres of the Catholic Counter-Reformation, and Protestantism never gained a strong foothold there.