"With respect to ceremonies and above all the observance of holy days [I offer the following]: Although there are some who eagerly long to remain in conformity with such practices, I do not know how they can do so without disregard for the edification of the church, nor [do I know] how they can render an account to God for having advanced evil and impeded its solution…." Letter dated December 25, 1557, Calvin’s Ecclesiastical Advice, 90.
Cited from, “In Translatiōne, John Calvin’s Letters to the Ministers of Montbéliard (1543–1544): The Genevan Reformer’s Advice and Views of the Liturgical Calendar,” The Confessional Presbyterian 13 (2017): 212.
