Schwarzenau Brethren

The Schwarzenau Brethren, or German Baptist Brethren as it is known in America, originated in Germany, the outcome of the Radical Pietist ferment of the late 17th and early 18th century. Hopeful of the imminent return of Christ, the founding Brethren abandoned the established Reformed and Lutheran churches, forming a new church in 1708 when their apocalyptic hopes were still unfulfilled. They thereby attempted to translate "the Philadelphian idea of love into concrete congregational ordinances obligatory for all the members." Unlike the Philadelphians, Brethren rejected Leade's embrace of direct revelation and emphasized early ("Apostolic" or "primitive") Christianity as the binding standard for congregational practices. The founding Brethren were also in conversation with Mennonites and influenced by Anabaptist writings.

In Germany the Brethren became known as Neue Täufer (New Baptists), in distinction from the older Anabaptist groups. In the United States they became popularly known as Dunkers, Dunkards or Tunkers, corruptions of the German verb tunken, to dip. Another religious group related historically to the same Radical Pietist ferment as the Brethren is the Community of True Inspiration.