The Novus Ordo Church is the Catholic Church, which is the True Church? The problem with that proposition is that a Novus Ordo is per se contrary to the dogma of faith, which requires adherence to the traditional rites (Constance Sess. 39), the preservation of the traditional “order of the liturgy received and approved by the Church” (Auctorem Fidei ; Pius IV, Professio Fidei Tridentina; Trent Sess. VII can. xiii de sacramentis in genere, etc.) Thus, being contrary to the Catholic faith in its liturgy, the Novus Ordo quite simply, is not Catholic. Furthermore, since the Novus Ordo violates the bond of communion of worship, it is materially schismatic, in accordance with the teaching of Innocent III, Juan de Torquemada, and Francisco Suarez.
This is patent in view of the fact that a “New Order of Mass” violates the most solemn infallible pronouncements and thus breaks the second bond of communion; and therefore, Innocent III teaches that a pope who changes the rites is not to be obeyed, and Torquemada & Suarez explain that such a pope who changes the rites falls into schism. This has been the constant and unchallenged teaching of the Church down through the ages, summed up by Pius XI in Quas Primas, where it is stated that it is the duty of the Roman Pontiffs to “safeguard the liturgy and preserve it from adulteration”.
The doctrine that binds the Church to adhere to the traditional rites was already in place during the patristic age, and is rooted in apostolic teaching: “23 ego enim accepi a Domino quod et tradidi vobis quoniam Dominus Iesus in qua nocte tradebatur accepit panem 24 et gratias agens fregit et dixit hoc est corpus meum pro vobis hoc facite in meam commemorationem 25 similiter et calicem postquam cenavit dicens hic calix novum testamentum est in meo sanguine hoc facite quotienscumque bibetis in meam commemorationem” – 1 Cor. 11: 23-25