Huldrych Zwingli

Swiss Reformer, Pastor, and Biblical Humanist

1484–1531
Estimated reading time: 4 minutes

Huldrych Zwingli was a Swiss priest, preacher, biblical scholar, and reformer whose work in Zürich helped establish the Reformed branch of the Protestant Reformation. Although he was a contemporary of Martin Luther, Zwingli developed his reforming convictions largely within the setting of Swiss humanism, pastoral ministry, and close study of the Greek New Testament. His theology influenced later Reformed leaders, including Heinrich Bullinger and John Calvin.

Zwingli was born on January 1, 1484, in Wildhaus, a village in the Swiss Confederacy. His family was prosperous and active in local affairs. He studied at Basel, Bern, and Vienna, receiving a strong education in classical languages, philosophy, and Renaissance humanism. He was ordained as a Roman Catholic priest in 1506 and served first in Glarus.

During these early years, Zwingli accompanied Swiss soldiers as a military chaplain on campaigns in Italy. His experiences contributed to his growing opposition to the mercenary system, through which Swiss cantons supplied soldiers to foreign rulers for payment. He came to regard the practice as morally destructive and politically corrupting.

In 1516 Zwingli became a priest at Einsiedeln, an important pilgrimage center. There he deepened his study of Scripture and was influenced by the Christian humanism of Erasmus of Rotterdam. Zwingli copied and memorized portions of the Greek New Testament and increasingly emphasized biblical preaching over later traditions that he believed lacked scriptural support.

In 1519 he became the principal preacher at the Grossmünster church in Zürich. Rather than follow the customary lectionary, Zwingli began preaching consecutively through biblical books, starting with Matthew. His sermons addressed worship, clerical corruption, social injustice, fasting, images, celibacy, and the authority of church tradition. During a plague outbreak that same year, he remained in Zürich to care for the sick, contracted the disease, and nearly died.

The Zürich Reformation advanced through public debates held in 1523. Zwingli argued that Scripture, rather than pope, council, or custom, must govern Christian teaching. The city council supported many of his proposals. Over time, the Mass was replaced with a simpler service, religious images were removed, monasteries were reorganized, and clergy were permitted to marry. Zwingli himself married Anna Reinhart, with whom he had already entered a private union.

Zwingli agreed with Luther on justification by faith and the authority of Scripture, but they disagreed sharply about the Lord’s Supper. At the Marburg Colloquy in 1529, Luther insisted that Christ’s body and blood were truly present in the sacrament, while Zwingli understood the bread and wine primarily as signs commemorating Christ’s saving death. Their inability to agree prevented full unity between the German and Swiss reform movements.

Zwingli’s reform was closely connected with Zürich’s political authorities. This enabled rapid institutional change but also created serious problems. He supported coercive measures against opponents, including the Anabaptists, whose rejection of infant baptism and insistence on a believers’ church challenged both ecclesiastical and civic order. The drowning of the Anabaptist leader Felix Manz in 1527 remains a grave part of Zwingli’s legacy.

Conflict also grew between Protestant and Roman Catholic Swiss cantons. In 1531 war broke out, and Zwingli accompanied Zürich’s forces as a chaplain. He was killed at the Battle of Kappel on October 11, 1531. After his death, Heinrich Bullinger consolidated the Zürich Reformation and helped transmit Zwingli’s influence into the broader Reformed tradition.

As a conversation partner, Zwingli is valuable for his commitment to biblical preaching, study of the original languages, concern for public morality, and insistence that church practices be tested by Scripture. Yet his alliance of religious reform with governmental power also warns against using coercion to enforce theological agreement. His theology and conduct must therefore be evaluated by the same biblical authority he sought to uphold.

“Your word is a lamp to my feet and a light to my path.”
—Psalm 119:105