Ad Tuendam Fidem is an apostolic letter of Pope John Paul II issued motu proprio on July 15, 1998. Ecclesiastical letters are publications or announcements of the organs of Roman Catholic ecclesiastical authority, e. ... Coat of Arms of Pope John Paul II. The Letter M is for Mary, the mother of Jesus, to whom he held strong devotion Pope John Paul II (Latin: ), (Italian: Giovanni Paolo II), born   [](May 18, 1920, Wadowice, Poland – April 2, 2005, Vatican City) reigned as Pope of the Catholic... Name given to a certain type of Papal rescript, where the clause motu proprio (of his own accord) is used, signifying that the provisions of the rescript were decided by the pope personally and not by a cardinal or other advisors. ...

The apostolic letter modifications to the Oriental and Latin codes of canon law defining penalties for public dissent by public ministers of the Church.

In an unusual move, the Congregation for the Doctrine of the Faith simultaneously issued an instruction on Ad Tuendam Fidem identifying examples of the ordinary magisterium which must be accepted with obsequium religiosum, "religious assent." Among those examples, to the surprise of many, was the papal bull, Apostolicae Curae which defined Anglican Holy Orders as invalid. The Congregation for the Doctrine of the Faith (CDF) (Congregatio pro Doctrina Fidei) is the oldest of the nine congregations of the Roman Curia. ... Obsequium religiosum is a Latin phrase meaning religious submission or religious assent, particularly in the theology of the Catholic Church. ... Apostolicae Curae is the title of a papal bull issued in 1896 by Pope Leo XIII, declaring all Anglican holy orders null and void. ... The term Anglican describes those people and churches following the religious traditions of the Church of England, especially following the Reformation. ... Catholic deacon candidates prostrate before the altar of the Cathedral of Our Lady of the Angels in Los Angeles during a 2004 diaconate ordination liturgy Holy Orders in the Roman Catholic, Eastern Orthodox, Oriental Orthodox, Anglican, Assyrian, Old Catholic, and Independent Catholic churches includes three orders: bishop, priest, and deacon. ...