“The Church is infallible in her general discipline. By the term general discipline is understood the laws and practices which belong to the external ordering of the whole Church. Such things would be those which concern either external worship, such as liturgy and rubrics, or the administration of the sacraments….
“If she [the Church] were able to prescribe or command or tolerate in her discipline something against faith and morals, or something which tended to the detriment of the Church or to the harm of the faithful, she would turn away from her divine mission, which would be impossible.”
And yet, to hear many of my friends tell it, the Magisterium has established a rite of worship and prayer which tends “to the detriment of the Church or to the harm of the faithful”.