Having just named the “holy Roman catholic and apostolic church“ as one of his two overbearing masters, Stephen thinks of the source of these "proud potent titles" in the Nicene Creed of 325 AD: “et unam sanctam catholicam et apostolicam ecclesiam,” one holy catholic and apostolic church.

JH 2011

Orthodox icon depicting the first Council of Nicaea holding the document they have composed. Source: Wikimedia Commons.

The choir of St. Thomas Church in Leipzig, Germany, conducted by the church's kantor, Georg Christoph Biller.