Out of fear of persecution, Baptists gathered in remote places, such as in caves, in the woods, or in other hiding places. This enforced "separation" fitted with their understanding of the church, which did not require "stone churches" and which defined Baptists as the congregation of the pure.
Baptist gathering in the woods surrounded by Baptist hunters, unknown artist; source: Zentralbibliothek Zürich, Ms F 23, fol. 394.