The Church says that Muslims and Jews do adore the same God that we do. She applies an ecclesiology that is more consistent with this belief than in the past. This does not mean that dogma has changed. The reason why the Church can modify this position from previous ones, is becaus they were not dogmas. The dogmas that came out of the Council of Florence had to do with the nature of God, purgatory, the primacy of Peter, the words of consecration and the unity of the Church.
…]
This is from Nostra Aetate, one of the most updated commentaries on ecclesiology. Nostra Aetate is not trying to undo dogma, but trying to make is easier for us to understand and to apply it correctly, by avoiding the pitfalls into which many Catholics fell through the centuries, pitfalls that led to conflicts and even hatred, because of an incorrect interpretation of what the Church believes.
Did the following popes also share this “incorrect interpretation of what the Church believes” (keeping in mind that what they teach as binding on the Church
is the teaching of the Church)?
The Council of Florence (A.D. 1438-1445) From Cantate Domino — Papal Bull of Pope Eugene IV: (Infallible General Council & Ex Cathedra papal declaration)
The sacrosanct Roman Church…firmly believes, professes, and proclaims that those not living within the Catholic Church, not only pagans, but also Jews and heretics and schismatics cannot become participants in eternal life, but will depart “into everlasting fire which was prepared for the devil and his angels” [Matt. 25:41], unless before the end of life the same have been added to the flock; and that the unity of the ecclesiastical body is so strong that only to those remaining in it are the sacraments of the Church of benefit for salvation, and do fastings, almsgiving, and other functions of piety and exercises of Christian service produce eternal reward, and that
no one, whatever almsgiving he has practiced, even if he has shed blood for the name of Christ, can be saved, unless he has remained in the bosom *and unity *of the Catholic Church.
ewtn.com/library/COUNCILS/FLORENCE.HTM
Pope Boniface VIII.
Unam Sanctam – 18 November 1302
Urged by faith, we are obliged to believe and to maintain that the Church is one, holy, catholic, and also apostolic. We believe in her firmly and we confess
with simplicity that outside of her there is neither salvation nor the remission of sins, as the Spouse in the Canticles [Sgs 6:8] proclaims: ‘One is my dove, my perfect one. She is the only one, the chosen of her who bore her,’ and she represents one sole mystical body whose Head is Christ and the head of Christ is God [1 Cor 11:3]. In her then is one Lord, one faith, one baptism [Eph 4:5]. There had been at the time of the deluge only one ark of Noah, prefiguring the one Church, which ark, having been finished to a single cubit, had only one pilot and guide, i.e., Noah, and we read that, outside of this ark, all that subsisted on the earth was destroyed.
papalencyclicals.net/Bon08/B8unam.htm
From Pope Leo XII’s encyclical
Ubi Primum 1823-1829:
14. Certainly many remarkable authors, adherents of the true philosophy, have taken pains to attack and crush this strange view. But the matter is so self-evident that it is superfluous to give additional arguments.
It is impossible for the most true God, who is Truth Itself, the best, the wisest Provider, and the Rewarder of good men, to approve all sects who profess false teachings which are often inconsistent with one another and contradictory, and to confer eternal rewards on their members. For we have a surer word of the prophet, and in writing to you We speak wisdom among the perfect; not the wisdom of this world but the wisdom of God in a mystery. By it we are taught, and by divine faith we hold one Lord, one faith, one baptism, and that no other name under heaven is given to men except the name of Jesus Christ of Nazareth in which we must be saved. This is why we profess that there is no salvation outside the Church.
[21] He who hears you, hears me; and he who despises you, despises me; and the Church is the pillar and firmament of truth, as the apostle Paul teaches.[22] In reference to these words St. Augustine says: “Whoever is without the Church will not be reckoned among the sons, and whoever does not want to have the Church as mother will not have God as father.”[23]
papalencyclicals.net/Leo12/l12ubipr.htm
The following teachings were solemnly condemned by Pope Pius IX as heresies in the Syllabus of Errors: III. INDIFFERENTISM, LATITUDINARIANISM
HERESY #15. Every man is free to embrace and profess that religion which, guided by the light of reason, he shall consider true. – Allocution “Maxima quidem,” June 9, 1862; Damnatio “Multiplices inter,” June 10, 1851.
HERESY #16. Man may, in the observance of any religion whatever, find the way of eternal salvation, and arrive at eternal salvation. – Encyclical “Qui pluribus,” Nov. 9,
papalencyclicals.net/Pius09/p9syll.htm
Encyclical of Pope Gregory XVI,
Summo Iugiter Studio, May 27, 1832:
We shall praise St. Gregory the Great who expressly testifies that this indeed is the teaching of the Catholic Church. He says: “
The holy universal Church teaches that it is not possible to worship God truly except in her and asserts that all who are outside of her will not be saved.” Official acts of the Church proclaim the same dogma. Thus, in the decree on faith which Innocent III published with the synod of Lateran IV, these things are written: "There is one universal Church of all the faithful outside of which no one is saved."
papalencyclicals.net/Greg16/g16summo.htm