A
conventicle is a small, unofficial and unofficiated meeting of
laypeople, to discuss religious issues in a non-threatening, intimate manner.
Philipp Jakob Spener called for such associations in his
Pia Desideria, and they were the foundation of the German Evangelical Lutheran
Pietist movement. Due to concern over possibly mixed-gender meetings, sexual impropriety, and subversive sectarianism conventicles were condemned first by mainstream
Lutheranism and then by the Pietists within decades of their inception.
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