Steve Perisho: "Semper reformanda," at http://spu.libguides.com/DCL2017/Reformation#s-lg-box-wrapper-18675181, citing himself (August Bauer in 1893) but more importantly J. N. Mouthaan, "Besprekingsartikel: Ecclesia semper reformanda: modern of premodern?," Documentatieblad Nadere Reformatie 38, no. 1 (2014): 88 (86-89), who cites Abraham Kuyper in 1892, and observes that this means both that "The formulation ecclesia semper reformanda is much older than 1947", and that "The origin of this formulation lies therefore even earlier [than in] Kuyper."
