I don’t think if someone left they are going to hell.
We don’t get to make up our own theology.
There is no enterning into salvation outside the Church, just as in the time of the deluge there was none outside the ark, which denotes the Church. St. Thomas Aquinas - Summa Theologiae
All are bound to belong to the Church, and he who knows the Church to be the true Church and remains out of it cannot be saved. The Baltimore Catechism
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the one Christ is the one mediator and the way of salvation; he is present to us in his body which is the Church…Hence they could not be saved who, knowing that the Catholic Church was founded as necessary by God through Christ, would refuse either to enter it or to remain in it. Catechism of the Catholic Church
Saint Augustine: “He who is separated from the body of the Catholic Church, however laudable his conduct may otherwise seem, will never enjoy eternal life, and the anger of God remains on him by reason of the crime of which he is guilty in living separated from Christ.”
Saint Gregory the Great: “The holy universal Church teaches that God cannot be truly adored except within its fold; she affirms that all those who are separated from her will not be saved.”
Saint Augustine: “No man can find salvation except in the Catholic Church. Outside the Catholic Church one can have everything except salvation. One can have honor, one can have the sacraments, one can sing alleluia, one can answer amen, one can have faith in the name of the Father and of the Son and of the Holy Ghost, and preach it too, but never can one find salvation except in the Catholic Church.”
Saint John Chrysostom: “We know that salvation belongs to the Church alone, and that no one can partake of Christ nor be saved outside the Catholic Church and the Catholic Faith.”
Pope Saint Gregory the Great: “Now the holy Church universal proclaims that God cannot be truly worshipped saving within herself, asserting that all they that are without her shall never be saved.”
Saint Bede the Venerable: “He who will not willingly and humbly enter the gate of the Church will certainly be damned and enter the gate of hell whether he wants to or not.” (Sermon 16) “Without this confession, without this faith, no one can enter the kingdom of God.”
Pope Sylvester II: “I profess that outside the Catholic Church, no one is saved.”
Pope Saint Leo IX: “If you live not in the body which is Christ, you are none of His. Whose, then, are you? You have been cut off and will wither, and like the branch pruned from the vine, you will burn in the fire - an end which may God’s goodness keep far from you.”
Fourth Ecumenical Council of the Lateran: “There is only one universal Church of the faithful, outside of which no one can be saved.”
Pope Eugene IV: “Whoever wishes to be saved needs, above everything else, to hold the Catholic faith. Unless each one preserves this faith whole and inviolate, he will perish in eternity without a doubt.”
Pope Adrian II “The first requirement of salvation is to keep to the standard of the true faith.”
Pope Gregory XVI - “He who is separated from the body of the Catholic Church, however praiseworthy his conduct may otherwise seem, will not be saved.”
Pope Leo XIII: “Whosoever is separated from the Church is united to an adultress. He has cut himself off from the promises of the Church, and he who leaves the Church of Christ cannot arrive at the rewards of Christ…He who observes not this unity observes not the law of God, holds not the faith of the Father and the Son, clings not to life and salvation.”
Pope Pius IV “I promise, vow, and swear that, with God’s help, I shall most constantly hold and profess this true Catholic faith, outside which no one can be saved.”
Pope Pius VIII “Remember this firm dogma of our religion: that outside the true Catholic faith no one can be saved.”
Pope Pius IX “See to it that the faithful have fixed firmly in their minds this dogma of our most holy religion: the absolute necessity of the Catholic faith for attaining salvation.”
Pope St. Pius X “Where is the road which leads us to Jesus Christ? It is the Church. It is our duty to recall to everyone, great and small, the absolute necessity we are under to have recourse to this Church in order to work out our eternal salvation.”
Pope Pius XI “If any man does not enter the Church, or if any man departs from it, he is far from the hope of life and salvation.”
Pope Pius XII “No one can depart from the teaching of Catholic truth without loss of faith and salvation.”
Council of Trent - "Constantly hold and profess this true Catholic faith, without which no one can be saved.
Vatican I “This true Catholic faith, outside which no one can be saved, which I now freely profess and truly hold, I do promise and swear that I will most constantly keep and confess whole and inviolate with the help of God until the last breath of my life, and that I will take great care that it be held, taught, and preached by my inferiors and by those who are placed under my charge.” - Papal Oath
Saint Robert Bellarmine: “Outside the Church there is no salvation…therefore in the symbol [Apostles Creed] we join together the Church with the remission of sins: `I believe in the Holy Catholic Church, the communion of Saints, the forgiveness of sins’…For this reason the Church is compared with the ark of Noah, because just as during the deluge, everyone perished who was not in the ark, so now those perish who are not in the Church.”
St. Francis of Assisi “And all of us humbly entreat and beseech everyone, all nations and all men in all the earth who are, and who shall be, that we may all of us persevere in the true faith: for otherwise no one can be saved.”
St. Louis Marie de Montfort “There is no salvation outside the Catholic Church. Anyone who resists this truth perishes.”
