Some things are anathema because of a particular moment in the history of the Church. When the pope is speaking to that moment and to that situation, he may well say that X is anathema. As time passes, the circumstances pass. When that happens, another pope can come along and say that X is OK. Why is it OK? It’s OK, because it’s not the same situation.
This does not apply to revealed truths. Revealed truths are what they are. Future popes can clarify, explain them more profoundly, see other details that a previous pope may have failed to mention (for whatever reason), but he’s not changing the truth. There can be 1,000 ways of explaining Transubstantiation. You can even come up with a new word for it. What cannot be changed is the truth that the bread and wine become the body and blood of Jesus Christ. The truth is eternal, even if the words used to explain it change or more is said today than was said originally.
That’s the difference here. We know that something is infallible when the Church speaks about a revealed truth.
For example, Pope John Paul said that abortion was never morally justifiable. However, if you read Evangelium Vitae, he builds up to that statement by presenting what has been revealed and accepted as infallible truth. When he reaches the climax of his argument, he makes his point. It cannot be refuted, because it’s built on the faith of the Church, which is built upon: Scripture, Sacred Tradition and the Magisterium.
Anything that is disciplinary is not going to be infallible, even if it is followed by an anathema. The anathema usually applies to those who would deny the discipline, not to those who have the authority to change it. That’s why Pope Paul could change the missal, because the anathema does not apply to him. He had the authority to change it. It only applied to those who would dare to try to do it without having the authority to do so.
It’s not a word that is used too much in today’s ecclesial language, but it’s implied in many writings and statements.
Fraternally,
Br. JR, OSF
