Religious Education

In Catholicism, the Magisterium is the teaching authority of the Church.[1] According to the Catechism of the Catholic Church: "The task of interpreting the Word of God authentically has been entrusted solely to the Magisterium of the Church, that is, to the Pope and to the bishops in communion with him."[2] Catholic theology divides the functions of the teaching office of the Church into two categories: the infallible sacred magisterium and the fallible ordinary magisterium. The infallible sacred magisterium includes the extraordinary declarations of the pope speaking ex cathedra and of ecumenical councils (traditionally expressed in conciliar creeds, canons, and decrees), as well as of the ordinary and universal magisterium. Despite its name, the "ordinary and universal magisterium" falls under the infallible sacred magisterium, and in fact is the usual manifestation of the infallibility of the Church, the decrees of popes and councils being "extraordinary".
Examples of infallible extraordinary papal definitions (and, hence, of teachings of the sacred magisterium) are Pope Pius IX's definition of the Immaculate Conception of Mary, and Pope Pius XII's definition of the Assumption of Mary. Examples of infallible extraordinary Conciliar decrees include the Council of Trent's decree on justification, and Vatican I's definition of papal infallibility. Examples of infallible teachings of the ordinary and universal magisterium are harder to point to, since these are not contained in any one specific document, but are the common teachings found among the Bishops dispersed through the world yet united with the pope. Pope John Paul II specifically clarified that the reservation of ordination to males is infallible under the infallibility of the ordinary and universal magisterium of the Church, without issuing a corresponding extraordinary papal definition. This document, signed by then Joseph Cardinal Ratzinger, Prefect of the Congregation of the Doctrine of the Faith