You’ve probably seen the words “Brethren” or “Mennonite” on a church sign, a food label, or in a history book. They sound old-fashioned, maybe even a little mysterious. But what do these terms actually mean? Are they just different words for the same thing, or do they point to distinct communities with unique beliefs and practices? Let’s untangle the terminology and explore the fascinating world of these Christian groups that often emphasize peace, simplicity, and community.

1. The Common Thread: The Anabaptist Movement

To understand terms like Mennonite and Brethren, you must start with the 16th-century Protestant Reformation. Beyond Luther and Calvin, a more radical wing emerged called Anabaptists. Their core belief was in adult, or “believer’s,” baptism (re-baptizing those baptized as infants), which was illegal and seen as seditious. This commitment to a voluntary church separate from state control is the foundational idea for all the groups discussed here.

2. Mennonites: Followers of Menno Simons

The name “Mennonite” comes from Menno Simons, a former Catholic priest from Friesland. In the 1530s, he became a leader and organizer for the scattered and persecuted Anabaptist groups in the Netherlands and northern Germany. His writings on nonviolence, discipleship, and church discipline helped solidify their beliefs. Groups that followed his teachings became known as Mennonites.

3. The Amish: A Split from the Mennonites

The Amish are a direct offshoot of the Mennonites. In the late 1600s, a Swiss Mennonite elder named Jakob Ammann advocated for stricter practices, including shunning and plain dress. His followers, called Amish, separated. They are known for their deep commitment to separation from the world, which can include the use of technology, distinctive clothing, and horse-and-buggy transportation.

4. “Brethren”: A Term of Fellowship and Identity

“Brethren” is simply an old English word for “brothers.” It’s a term of fellowship used within a church to denote members. Several distinct groups use it in their formal names, often to emphasize the New Testament concept of a community of believers as a family. It’s not interchangeable with “Mennonite,” though their histories sometimes intertwine.

5. The Church of the Brethren: Founded in Germany

The Church of the Brethren was founded in 1708 in Schwarzenau, Germany by Alexander Mack. Influenced by Pietist and Anabaptist ideals, they emphasized New Testament Christianity, adult baptism by triple immersion, pacifism, and simple living. They are historically known as “Dunkers” (from the German *tunken*, to dip). They are a distinct denomination from Mennonite groups.

6. The Brethren in Christ: A “River Brethren” Origin

The Brethren in Christ Church began in late-18th-century Pennsylvania among Swiss-German immigrants. They were originally called “River Brethren.” They blend Anabaptist, Pietist, and Wesleyan holiness influences. They hold to believer’s baptism, nonresistance, and plain dress (though often less strictly than the Amish), making them doctrinally similar to but administratively separate from Mennonites.

7. Hutterites: The Communal Living Branch

Hutterites are another major Anabaptist group, named for Jakob Hutter. Founded in the 1500s in Moravia, they are distinguished by their practice of communal living, where all property is held in common. They live in agricultural colonies, primarily in the Prairie provinces of Canada and the U.S. Great Plains. They share the core Anabaptist beliefs with Mennonites and Amish but are a separate body.

8. Plain People: A Descriptive, Not Denominational, Term

“Plain People” is a broad, descriptive term for groups who intentionally adopt a lifestyle of simplicity and separation from mainstream society, often visible in their traditional dress (plain clothes). It encompasses the Amish, some conservative Mennonite groups, the Brethren in Christ, and others. Not all Anabaptists are “plain,” and not all plain groups are Anabaptist.

9. Conservative vs. Progressive: A Spectrum of Practice

Within each of these families, there is immense diversity. There are conservative Mennonite conferences that may use horse-and-buggy and wear prescribed plain dress, and there are progressive Mennonite churches in urban areas that look similar to many mainstream Protestant congregations. The same is true for Brethren groups. The label alone doesn’t tell you everything about their modern practice.

10. Pacifism and Nonresistance: A Core Commitment

A defining theological stance for traditional Anabaptist and Brethren groups is a commitment to peace. This is often termed “nonresistance,” based on Jesus’s Sermon on the Mount. Historically, this meant refusing to serve in the military. Today, it often translates into active peacebuilding, mediation, and humanitarian service worldwide through organizations like Mennonite Central Committee.

11. The Importance of Community

For these groups, faith is not just an individual matter but a communal one. The church community is central to identity, mutual aid, discipline, and support. This can range from the tight-knit geographic colony of the Hutterites to the congregational accountability in a Mennonite church to the barn-raising fellowship of the Amish.

12. Adult Believer’s Baptism: The Defining Sacrament

All these groups practice believer’s baptism upon a confession of faith, rejecting infant baptism. The mode varies: Mennonites and Amish typically practice pouring or sprinkling, while the Church of the Brethren practices forward triple immersion. This act is the public entry into the church community and a symbol of adult commitment.

13. The Schleitheim Confession: An Early Anabaptist Creed

To understand their early beliefs, look to the Schleitheim Confession (1527). This document outlined key Anabaptist principles: believer’s baptism, the “ban” (church discipline), separation from the evil world, a pacifist stance, and the understanding of the Lord’s Supper as a memorial of Christ’s suffering. It remains influential for many conservative groups.

14. Modern Expressions and Outreach

Today, many Mennonite and Brethren denominations are actively engaged in global missions, disaster relief, and social justice advocacy. They run universities, hospitals, and publishing houses. Their historical emphasis on service and peace translates into significant NGO and charitable work around the globe.

15. Cultural Contributions: From Food to Furniture

These communities have made rich cultural contributions, often associated with quality and craftsmanship. Think of Amish quilts and furniture, Mennonite relief sales featuring homemade pies and jams, or the reputation of Brethren and Mennonite farmers for agricultural stewardship. Their products are often sought after for their durability and tradition.

16. The Challenge of Language and Labels

As with any religious family, labels can be tricky. A person might be a member of the “Lancaster Mennonite Conference,” attend a “Beachy Amish” church, or simply identify as “Anabaptist.” The precise denominational name is often more important to outsiders than to members, who may simply identify with their local congregation.

17. Theological Nuances: Beyond the Surface

While they share historical roots, there are theological differences. Some groups emphasize a “heart felt” Pietist faith, while others focus on literal obedience to New Testament teachings. Views on salvation, the role of works, and eschatology can vary between and within these traditions, showing they are not a monolithic block.

18. The Role of Bishops and Ordination

Church governance varies. Many use a system of bishops, ministers, and deacons chosen from within the congregation, often by lot. Leadership is typically unpaid and drawn from the community. This stands in contrast to more hierarchical or seminary-trained clergy models in other Christian traditions.

19. Encountering Them Today

You might encounter these communities through a Mennonite-run food co-op, a Brethren disaster response team, an Amish farm stand, or a scholarly book on peace theology from a professor at a related college. Their influence extends far beyond their often-insular stereotypes.

20. A Living Tradition, Not a Relic

While deeply rooted in the 16th century, these groups are not historical reenactors. They are living faith communities constantly navigating how to maintain their core identity—peace, community, discipleship—in a rapidly changing modern world. The terms “Brethren” and “Mennonite” are portals into this ongoing, dynamic story of faith.

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Community, Religion,

Last Update: April 21, 2026