I was recently listening to a talk on moral theology. The speaker is a professor at a Catholic university. He made the claim that the Catholic Church has NEVER taught infallibly in the realms of Morality. Is this true?
I’ve heard this opinion before. It is based on a narrowing of infallibility to a great extent, even to an heretical extent. The opinion narrows greatly, or denies, the infallibility of the ordinary and universal Magisterium, under which faculty the Church has taught on morality infallibly many times.
Examples of infallible teachings on morality by the Church:
Heresy is gravely immoral, and many Ecumenical Councils have infallibly taught against heresy.
Evangelium Vitae has three pronouncements on morality that many theologians hold to be infallible:
“Therefore, by the authority which Christ conferred upon Peter and his Successors, and in communion with the Bishops of the Catholic Church, I confirm that the direct and voluntary killing of an innocent human being is always gravely immoral. This doctrine, based upon that unwritten law which man, in the light of reason, finds in his own heart (cf. Rom 2:14-15), is reaffirmed by Sacred Scripture, transmitted by the Tradition of the Church and taught by the ordinary and universal Magisterium.” (EV, n. 57).
“The more recent Papal Magisterium has vigorously reaffirmed this common doctrine. Pius XI in particular, in his Encyclical Casti Connubii, rejected the specious justifications of abortion. Pius XII excluded all direct abortion, i.e., every act tending directly to destroy human life in the womb “whether such destruction is intended as an end or only as a means to an end”.” (EV, n. 62).
“Taking into account these distinctions, in harmony with the Magisterium of my Predecessors and in communion with the Bishops of the Catholic Church, I confirm that euthanasia is a grave violation of the law of God, since it is the deliberate and morally unacceptable killing of a human person. This doctrine is based upon the natural law and upon the written word of God, is transmitted by the Church’s Tradition and taught by the ordinary and universal Magisterium.” (EV, n. 65).