[1][2][3] According to the 1992 Catechism of the Catholic Church, the task of interpretation is vested uniquely in the Pope and the bishops,[4] though the concept has a complex history of development.
"[6] The exercise of the Catholic Church's magisterium is sometimes, but only rarely, expressed in the solemn form of an ex cathedra papal declaration, "when, in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority, [the Bishop of Rome] defines a doctrine concerning faith or morals to be held by the whole Church,"[7] or of a similar declaration by an ecumenical council.
The Catholic Church's magisterium is exercised without this solemnity in statements by popes and bishops, whether collectively (as by an episcopal conference) or singly, in written documents such as catechisms, encyclicals, and pastoral letters, or orally, as in homilies.
[2] Even public statements by popes or bishops on questions of faith or morals that do not qualify as "ordinary and universal magisterium" have an authority that Catholics are not free to merely dismiss.
The Second Vatican Council states, "For this reason Jesus perfected revelation by fulfilling it through His whole work of making Himself present and manifesting Himself: through His words and deeds, His signs and wonders, but especially through His death and glorious resurrection from the dead and final sending of the Spirit of truth."
[14][15][16][9] The most basic foundation of the Magisterium, the apostolic succession of bishops and their authority as protectors of the faith, was one of the few points that was rarely debated by the Church Fathers.
The doctrine was elaborated by Ignatius of Antioch (and others) in the face of Gnosticism, expounded by others such as Irenaeus, Tertullian, Cyprian, Ambrose, and Augustine, and by the end of the 2nd century AD was universally accepted by the bishops.
However, there had also developed in the Church a Roman sense of government, which insisted upon order at any cost, and this led to the phenomenon of the “imperial bishops,” men who had to be obeyed by virtue of their position, regardless of their personal holiness, and the distinction between “man” and “office.”[29] This understanding was not universally accepted.
He says that throughout Origen's life, many of his writings were considered to be questionably orthodox, and he seemed to espouse the idea of a teaching authority based on theological expertise alone rather than, or at least along with, apostolic succession.
[30] Another early disagreement in the Church surrounding the issue of authority manifested itself in Montanism, which began as a movement promoting the charism of prophecy.
While there arose a keener understanding and acceptance of papal primacy (at least after the Great Schism), there was also an increased emphasis placed on the theologian, and there were numerous dissenters from both views.
As part of the flourishing of culture and renewal under his reign, the Emperor Charlemagne commissioned one of the first major church-wide studies of the patristic era.
A common act of kings, bishops, and popes in matters of church or state with regard to religion was to poll the universities, especially the Sorbonne, on theological questions so as to obtain opinions from the masters before making their own judgment.
In the Catholic Church today, this custom is still observed (at least pro forma) in the retention of an official Theologian of the Pontifical Household, who often advises the pope on matters of controversy.
Throughout the Middle Ages, support for the primacy of the pope (spiritually and temporally) and his ability to speak authoritatively on matters of doctrine grew significantly as the Decretals of Isadore became widely accepted.
[34] In the Decretum of Gratian, a 12th-century canon lawyer, the pope is attributed the legal right to pass judgment in theological disputes, but he was certainly not guaranteed freedom from error.
The theologian continued to play a more prominent role in the teaching life of the church, as “doctors” were called upon more and more to help bishops form doctrinal opinions.
Despite this growth in influence, popes still asserted their power to crack down on those perceived as “rogue” theologians, through councils (for example, in the cases of Peter Abelard and Beranger) and commissions (as with Nicolas of Autrecourt, Ockham, and Eckhart).
[38] In the late Middle Ages, the concept of papal infallibility came to fruition, but a definitive statement and explanation of these doctrines did not occur until the 19th century, with Pope Pius IX and the First Vatican Council (1869–1870).
The magisterium in turn needs this work in order to authoritatively give solutions to modern problems in the area of faith and morals.
The situation is complicated by changing attitudes toward authority in an increasingly democratic world, the new importance placed on academic freedom, and new means of knowledge and communication.