This means that the Pope, when creating a teaching of the Catholic Church, can never be wrong. This only applys when the pope speaks ex cathedra and only on matters of faith and morals.
The Pope is said to be infallible in these circumstances.
The Magisterium is the teaching authority of the Church.
The Pope
According to Catholic belief, the Pope is given the special gift of infallibility to protect him from error in teaching matters of faith and morals when he speaks ex cathedra, or officially from the Chair of Peter. This means that under certain conditions and with specific criteria met, the Pope is preserved from error when issuing teachings on matters of faith and morals for the whole Church to believe.
The Pope
Benedict will no longer be in a position to be teaching ex cathedra about faith and morals so will not be speaking infallibly.
Catholic AnswerThe term commonly used for the teaching authority of the Popes on matters of faith and morals, in other words when they teach infallibly is: ex cathedrawhich literally means "from the chair" [of authority], this is the same chair that Jesus was talking about when he said that the teachers of the Jewish law spoke with the authority of Moses. When the Pope speaks ex cathedra his teaching is not dependent on consent of the Church and is irreformable.
Magisterium is the authority of the Catholic church to teach the faith; it is defined as "The Church's teaching authority, vested in the bishops, as successors of the Apostles, under the Roman Pontiff, as successor of St. Peter. Also, personally, vested in the Pope, as Vicar of Christ and visible head of the Catholic Church. Infallibility means freedom from error in teaching the universal Church in matters of faith or morals. This is a very strict, limited power that is granted to the Pope, and to all those Bishops who are teaching in accord with him. The connection is that the Magisterium is headed by the Pope, and that he is infallible in teaching on matters of faith and morals - which is the proper teaching of the Church - the Magisterium.
Spiritual morals refer to ethical principles or values that are guided by spiritual beliefs, teachings, or practices. These morals often involve the idea of interconnectedness, compassion, love, forgiveness, and being in harmony with the divine or the universe. They provide a framework for guiding behavior and decision-making based on one's spiritual principles.
Ethical usually means related to morals, the Council of Trent dealt more with faith then with morals, although it did touch on morals.
Yes, when it comes to matters of faith and morals.