"Of this sort of teaching Vatican II wrote: "This religious submission of will and of mind must be shown in a special way to the authentic teaching authority of the Roman Pontiff, even when he is not speaking ex cathedra. That is, it must be shown in such a way that his supreme teaching service is acknowledged with reverence, the judgments made by him are sincerely adhered to, according to his manifest mind and will"."
Catholic Church

January 1, 1970