I wouldn’t say the Sacrifice of the Mass itself is heretical. What would be heretical is the specific prayer within the Mass (the words of consecration, no less). But rather than me saying if it is, or is not, heretical, I’ll let you decide. Here’s four points to consider.
1.) According to what the Church teaches, the words pro multis (which mean for many) refer specifically to the elect - those who will be saved. As the Catechism of Trent taught: *“With reason, therefore, were the words for all not used, *as in this place the fruits of the Passion are alone spoken of, and to the elect only did His Passion bring the fruit of salvation”.
2.) Now, if these words, which refer only to the elect, are mistranslated as “for all” it implies that all will be saved.
3.) The idea that all men will be saved was formally condemned by Pope Pius II (actually he condemned the proposition that all Christians would be saved, which is even more narrow than all men).
4.) If the words pro multis refer only to the elect; and if the words pro multis are mistranslated as for all, does this incorrect translation imply the heresy of universal salvation? Please answer yes or no and provide explain how you arrived at the answer.
“
The Council of Trent recognized that the words “For you and for many” are not found in that form in the New Testament. Those words were “joined together by the Catholic Church under the guidance of the Spirit of God.” (Catechism of the Council of Trent, p. 226). The Council of Trent Catechism thus recognizes that it is the Church who determines what the proper form of a sacrament must be (Whitehead, 106). There is no hint that the Catechism was mandating that those precise words “For you and for many” be used for all time. In fact, during the institution of the original Eucharist itself, when Jesus consecrated the first Eucharist, we have different formulas in scripture. Although the gospels of Mark and Matthew have Jesus using the formula “for many” (although not “For you and for many” as the Tridentine rite has it), Luke and Paul do not use the phrase ‘for many’ at all.”
"A study done by Dom Leclerq finds that there have been no fewer than 89 variations in the formulas for consecration in the history of the Church. (Whitehead, 109, Dom Leclerq, Dictionnaire d’Archeologie Chretienne et de Liturgie (Col. 730-750). Of these variations there are a number where not only the phrase "for many’ but other words of the "Tridentine’ form (Such as Mystery of Faith) of the consecration are not to be found."
*
“The Catholic Church has never been limited to the Roman rite. It recognizes nine rites, which has its own right and proper way of doing things, including the celebration of the Eucharist, as Atwatter’s Catholic Dictionary points out before Vatican II (Latin, Byzantine, Armenian, Chaldean, Coptic, Ethiopic, Malabar, Maronite and Syrian rites):
The Mass of St. Hippolytus, which dates from the 3rd century, does not use the phrase for many, but “This is my body, which is broken for you”, and “This is my Blood which is shed for you”. The following recognized Oriental Liturgies do not include “for many” in the consecration of the chalice: Catholic Ethiopian Rite, “Take, drink, this is my blood which is shed for you for the remission of sins.” (From King, Archdale A., Rites of Eastern Christendom, Catholic Book Agency, Rome, 1947. Vol. 1, pp. 641-642). The same goes with the Liturgy of the Abyssinian Jacobites. Although most Eastern rites do presently use the phrase ‘for many’, in the ancient Eucharistic prayers many did not use that phrase. All of these Eucharistic prayers have been recognized by the Catholic Church.*”
*
"Finally a few examples that Whitehead provides of Eucharistic prayers dating back to the 7th century in books published by the Holy See include the Anaphora (Eucharistic prayer) of the Lord Jesus Christ: (107)
“And as often as ye do this, make memorial of Me. And likewise also the cup, putting wine into it, giving thanks, blessing (three signings of the cross) and sanctifying, Thou gavest unto them. Truly, This is Thy Blood which was shed for our sins.”
The Anaphora of the Evangelist John also does not use the ‘for many’ formula.
Thus, the formulas that do not include “for many” are historic, and have long been recognized by the Catholic Church. The fact that the phrase is not included in the English translation of the Latin formula is thus not an innovation of Pauline Rite Mass."*
matt1618.freeyellow.com/novusordo.html#IV.%20Is%20%E2%80%9CFor%20All%E2%80%9D%20an%20invalid%20translation%20of%20%E2%80%9CPro%20Vobis%20et%20Pro%20Multis%E2%80%9D?