"IT IS A GRAVE OFFENSE NOT TO WORK FOR THE EXTERMINATION OF HERESY WHEN THIS MONSTROUS INFECTION REQUIRES ACTION"
— Council of Vienne ♰♰♰


Thursday, April 30, 2026

Prevost’s seminary classmate: The Synodal church is 'diabolical'



LifeSiteNews: Viganò declared that “the conciliar and synodal Church continues to betray Our Lord's mandate by (colluding) with heretics and schismatics of every kind.”



Prevost exercises his spurious Masonic pontificate in a synodal manner.
  Prevost: “We want to be a synodal church”

Cardinal George Pell: Synodality has “developed into a toxic nightmare”, is “poutpourri”, “neo-Marxist jargon” and an “outpouring of New Age good will … hostile in significant ways to the Apostolic Tradition”

Prevost maliciously using the name of Christ carried out his vendetta against the male priesthood instituted by Christ and against his Church

        

Unity Among the Wicked 
Your Grace

Prevost repeatedly and maliciously confirmed the heretic—disguised as a bishop—in her heresy and in her invalid priesthood.


The impostor Robert Prevost, mocking the male priesthood instituted by Christ, began his speech by addressing the heretic Sarah Mullally—disguised as a bishop—: “Your Grace...”

In his apostate speech, Prevost fails to point out that what he himself characterizes as " continuing challenges"—which have hindered full communion with Anglicans—are: schism, heresy, and apostasy; the invalidity of the ordination of women and homosexuals; and immoral practices that defy God's natural law and contradict Catholic morality, such as promoting the practice of sodomy. Which, moreover, contradict Scripture.

Prevost said: Nevertheless, we must not allow these continuing challenges * to prevent us from using every possible opportunity to proclaim Christ to the world together. As my beloved predecessor, Pope Francis, said to the Primates of the Anglican Communion in 2024, “it would be a scandal if, due to our divisions, we did not fulfil our common vocation to make Christ known” (Address to Primates of the Anglican Communion, 2 May 2024). For my part, I add that it would also be a scandal if we did not continue to work towards overcoming our differences, no matter how intractable they may appear.


To justify his betrayal, Prevost cited his accomplice Bergoglio, yet failed to mention that, under the pontificate of Pope Benedict, in 2010 the Congregation for the Doctrine of the Faith announced that the obstacle which derailed this effort toward communion with the Anglicans was the ordination of women. 

Congregation for the Doctrine of the Faith

The decision of the Church of England to permit the ordination of women bishops was a step which would have a serious negative impact on full union with the Church

Pontifical Council for promoting Christian unity 

 Furthermore, in 2005, the Anglicans requested to put a hold on the meetings geared toward their full union with the Catholic Church in order to bless unions between persons of the same sex.



In his address to the heretic disguised as a bishop, Prevost maliciously utilized the name of Christ to execute his vengeance against His Church and His male priesthood—in collaboration with his henchmen—from the very Tomb of Saint Peter. Not only does she disguise herself as a Bishop, but he, too, disguises himself as a Pope, profaning and usurping the very Chair of Peter to consummate his vendetta. He carries out his vengeance against the Catholic Church and the Catholic priesthood—whom he perceives as the "oppressors" through the Marxist lens he acquired from the pseudo-theology of Gustavo Gutiérrez in Peru—thereby contradicting the assertion that the Catholic Church was founded by Jesus Christ. But not only that: defying the Scriptures, he rebels against the male priesthood instituted by Christ; moreover, he maliciously promoted the satanic parody of a priestess and endorsed her illicit power to exercise episcopal functions.



 

Defying Christ, the heretical Anglican woman—disguised as a bishop—Sarah Mullally, insinuates that the male priesthood instituted by Christ is an injustice.

@JhWesten ‘Archbishop’ Sarah Mullally was asked if she discussed women priests with Pope Leo XIV. She dodges: ‘I’m not a politician’ — then hints it came up as a ‘matter of justice.’

First of all, the question of whether she—while disguised as a bishop—had spoken with Prevost regarding the ordination of women was ridiculous. For Prevost had endorsed the travesty of the sacrament of the priesthood, allowing her—while disguised as a bishop—to desecrate the Tomb of Saint Peter and Saint Peter’s Basilica, and to use the Church of Saint Ignatius of Loyola to perform the functions of a "bishop." Moreover, he permitted her to act in his presence as if she were a legitimate priest, leading the prayer; and—making himself a party to the travesty—he treated her at all times as if she were a priest, offering neither admonition nor correction of any kind.



Jenny Holland: “Pope” Leo says justice and equality should "take priority” over Church’s teaching on sexual matters.

When Prevost promoted the sacrilegious "informal" blessing for unrepentant homosexual concubines, he revealed his synodal and Marxist agenda: "Justice (synonymous with Marxist liberation), equality (advocated by gender ideology), and freedom of religion (to worship false gods)—all of this would take priority over that particular issue (over the Church's teaching prohibiting the sin of blessing fornication and homosexual cohabitation)."

2 Corinthians 11:13-16

 For such false apostles are deceitful workmen, transforming themselves into the apostles of Christ.

And no wonder: for Satan himself transformeth himself into an angel of light.

Therefore it is no great thing if his ministers be transformed as the ministers of justice, whose end shall be according to their works.

Robert Prevost committed a sin of malice



Prevost mocks the priesthood instituted by Christ.

 

Apostate Robert Prevost: “To The Most Reverend and Right Honourable Dame Sarah Mullally Archbishop of Canterbury”

Brothers—in case you have not yet grasped it—allow me to translate this for you into the very language of Marxist liberation pseudo-theology. Do you not realize that the war Prevost is waging is against Christ and His Church? This ideology teaches that the Catholic Church—Christ, His Church, and His male priesthood—are precisely the oppressors against whom they fight to defend the rendering of "justice" to (heretical) Protestants, to Jews who reject Christ, to pagans (Pachamamists), to idolatrous Muslims and all other false religions, to blasphemous atheists, and to all the unrepentant—such as sodomites, adulterers, and the like.


CONGREGATION FOR THE DOCTRINE OF THE FAITH
                               'Professio fidei'

Wednesday, April 29, 2026

Monsignor Viganò: Prevost Backed a Heretical Woman Who Poses as a Priest and Archbishop

 

By their fruits you will recognize them.
                                   

                  

Robert Prevost and his henchmen mock the sacrament of the priesthood and the Papacy instituted by Christ.


LifeSiteNews: Viganò declared that ‘the conciliar and synodal church continues to betray the mandate of Our Lord by associating with heretics and schismatics of every stripe.’

Prevost exercises his spurious Masonic pontificate in a synodal manner.
  Prevost: “We want to be a synodal church”

In the Anti-Church led by Prevost, all false religions are considered equal to the Catholic Church.

In an interview, the Anglican heretic Sarah Mullally declared that she felt encouraged by Leo XIV; she felt like a "pastor"—just like him.



         @JhWesten

What is sacrilege! Right in front of the bones of Saint Peter the first of the apostles the fake ‘Archbishop’ gives a blessing while a Catholic Bishop bows

Prevost to heretics: ‘We are already one!’


The apostate Robert Prevost: "Everything we hear today regarding synodality, we were already doing in Chulucanas back in the 1980s."

That is why this apostate and sacrilegious Marxist priest accompanied shamans to worship Pachamama. And that is why he publicly allows himself to be conjured by a shaman.


The Church has condemned religious indifferentism; it is for this reason that it condemned Freemasonry. This religious indifferentism—which violates the First Commandment—is considered the greatest blasphemy against the Most Holy Trinity, drawing down the most severe punishments upon humanity. 



@JhWesten ‘Archbishop’ Sarah Mullally was asked if she discussed women priests with Pope Leo XIV. She dodges: ‘I’m not a politician’ — then hints it came up as a ‘matter of justice.’ 


When Prevost promoted the sacrilegious "informal" blessing for unrepentant homosexual concubines, he revealed his synodal and Marxist agenda: "Justice (synonymous with Marxist liberation), equality (advocated by gender ideology), and freedom of religion (to worship false gods)—all of this would take priority over that particular issue (over the Church's teaching prohibiting the sin of blessing fornication and homosexual cohabitation)."

Jenny Holland: “Pope” Leo says justice and equality should "take priority” over Church’s teaching on sexual matters.

2 Corinthians 11:13-16

 For such false apostles are deceitful workmen, transforming themselves into the apostles of Christ.

And no wonder: for Satan himself transformeth himself into an angel of light.

Therefore it is no great thing if his ministers be transformed as the ministers of justice, whose end shall be according to their works.


We had been warned that the Antichrist would imitate the Church of Christ—that everything would be inverted. For this reason, in Marxist praxis, language takes on a different meaning; words such as "poor" and "justice" acquire a Marxist significance, and Scripture is interpreted through a Marxist lens. This manipulation of language and Scripture goes unnoticed by the naive.


With the complicity of Robert Prevost and his henchmen—the Anglican heretic who presents herself as an Anglican "Synodal Popess"—profaned the Tomb of Saint Peter, Saint Peter's Basilica, and the Church of Saint Ignatius of Loyola. She acted as if she were a priest, thereby profaning the Catholic priesthood within the very confines of the church.



@JhWesten: Famed Vatican journalist Edward Pentin on Leo XIV welcoming female 'archbishop' Sarah: "the Vatican is serving to affirm her in her ecclesial ‘TRANS’ identity and error. (emphasis mine)


Cardinal George Pell: Synodality has “developed into a toxic nightmare”, is “poutpourri”, “neo-Marxist jargon” and an “outpouring of New Age good will … hostile in significant ways to the Apostolic Tradition”

Tuesday, April 28, 2026

Prevost’s sacrilegious and malicious meeting with the Anglican heretic—who is pro-gay and pro-abortion—confirmed Mullally in her heresies. And she, mocking God, refuses to convert in order to continue profaning the priesthood

By their fruits you will recognize them.

@JhWesten

What is sacrilege! Right in front of the bones of Saint Peter the first of the apostles the fake ‘Archbishop’ gives a blessing while a Catholic Bishop bows

Prevost maliciously promotes fruitless 'ecumenical' encounters that, instead of achieving the conversion of heretics, entrench them in their heresies.

In an interview, the Anglican heretic Sarah Mullally declared that she felt encouraged by Leo XIV; she felt like a "pastor"—just like him.




The Anglican "Popess" committed another sacrilege by profaning another Catholic church, coordinated by the apostate Tagle.

In the afternoon, following the fruitless and sacrilegious meeting with the apostate Prevost, the apostate "Popess" of Canterbury, Sarah Mullally, presided over a sacrilegious parody of Vespers, profaning the Church of Saint Ignatius of Loyola, in complicity with Luis Antonio Tagle.


The Communion of the Profane of the False Church
 Gloria TV News

On 27 April, Mrs Sarah Mullally commissioned the Director of the Anglican Centre in Rome, Anthony Ball, as her representative to the Holy See. Despite the Anglicans having their own church in Rome, the ceremony took place at the Church of Saint Ignatius of Loyola. Cardinal Luis Antonio Tagle delivered a homily about an alleged "common faith and unity in Jesus Christ".


Archbishop of Canterbury on X: "Yesterday - Day three in Rome - I had the pleasure of commissioning Bishop Anthony Ball as the Archbishop of Canterbury’s representative to the Holy See. Bishop Anthony was commissioned in a beautiful choral evensong at the Chiesa di Sant’Ignazio Loyola. The service was full of https://t.co/HZrvleC8Gs" / X



 Titus 3:10-11 Warn a heretic once or twice, but afterward reject him. 11 You may be sure that such a person is perverted and sinful and stands self-condemned.
Instead of seeking the conversion of false religions, Prevost simultaneously draws various sects toward himself, granting each of them something in exchange for this "apostate union" with him.
Unfortunately, Prevost is also being supported by apostates—both priests and laity. Once Prevost had seized control of the Church’s physical infrastructure, Catholic media outlets, and finances, he held a group of "deceived Catholics" in a state of delusion; these individuals collaborate with evil—much as the Communists of old characterized such collaborators as "useful idiots." This phenomenon can be explained—just as Scripture affirms—only by the fact that they have fallen under a satanic spell, such that they themselves prefer to believe Prevost's lies. They do everything possible to cover it up, justify it, and support it. As Saint Alphonsus Liguori explains, spiritual blindness and obstinacy are possible only when a soul is a slave to sin. For this reason, in Thessalonians, we see it stated that those who have fallen under satanic deception have loved the lie more than the Truth of the Gospel; and therefore, they will receive their punishment—not as victims of a deception, but as accomplices to the satanic lie.
2 Thessalonians 2:10-12 and in every wicked deception designed for those who are perishing because they refused to accept the love of the truth[a] and thereby gain salvation. For this reason, God imposes on them a powerful delusion. They believe what is false, 12 so that all who have not believed the truth but instead have taken pleasure in wickedness will be condemned.



Prevost Promotes a False Peace and Apparent Solutions to the Division Among Christians in Exchange for Apostasy



For instance—cunningly—while Prevost allowed the desecration of the Tomb of Saint Peter to go unpunished, and joined in "prayer" with the Anglican heretic Mullally—a promoter of pro-homosexual and pro-abortion agendas who poses as a "popess"—he received her with honors and endorsed her sacrilegious parody of a priestess, rather than admonishing and correcting her. Much like corrupt politicians and demagogues, he cloaked his betrayal under the pretext of having sent a message to Anglicans: a message that, in reality, the "popess" herself shares on her social media. He spoke of a supposed effort to eliminate that "obstacle hindering the proclamation of the Gospel" and "the division among Christians"—which weakens their capacity to be effective bearers of that peace. This juggling of empty words is nothing more than demagogic rhetoric, for the very essence of the Anglican sect constitutes the obstacle itself and would have to cease to exist—a heretical essence that he himself acknowledged. Thus, in reality, this signifies nothing to the unrepentant Anglican heretic.

@JhWesten: ‘Archbishop’ Sarah Mullally was asked if she discussed women priests with Pope Leo XIV. She dodges: ‘I’m not a politician’ — then hints it came up as a ‘matter of justice.’
When Prevost promoted the sacrilegious “informal” blessing for unrepentant concubines, he revealed his Marxist synodal agenda: “Justice, Equality, freedom of religion—all of that would take priority over that particular issue.”

Jenny Holland: “Pope” Leo says justice and equality should "take priority” over Church’s teaching on sexual matters.

After publishing what Prevost said, she herself continued uploading videos to her social media accounts to demonstrate the support she receives from Prevost and his apostate cronies. And she continued her sacrilegious charade, acting as an Anglican "priestess and popess."

As Saint Augustine explains: by obstinately abusing God's mercy to continue sinning, Sarah Mullally does not show herself to be penitent; rather, on the contrary, she mocks God.
Furthermore, the website of the Anglican heretics in Rome shared a link to the official Vatican site, which contains the speech by the apostate Robert Prevost.

It also became clear that the apostate Community of Sant'Egidio was involved in backing the parody of the Anglican "papess."



Prevost employs the double standard of "yes" and "no"—an ambivalence that emanates from the Devil—a double morality and diabolical demagoguery—in the style of corrupt politicians—used to deceitfully win over a population that holds opposing views. It is comparable to the moment when Solomon committed apostasy by building a temple for each of his pagan wives, so that each might worship her own false god. It is the cunning of a harlot who keeps multiple lovers simultaneously, deceiving them all with her diabolical seductions.


Soloviev’s work, *Three Dialogues*, portrays the Antichrist as an ecumenist (the polytheist of Abu Dhabi), an environmentalist (the *Pachamamista* of *Laudato Si’*), and a pacifist (the Irenist heresy, wherein, within a pantheon of religions, false gods are invoked to implore a false and immanentist peace—one devoid of the Prince of Peace). It was with the kiss of peace that Judas betrayed Christ. The sign of peace is utilized to conceal the betrayal of Christ—a false peace that leads to apostasy.

As the *Catechism* explains, the religious imposture of the Antichrist—carried out under the guise of goodness, concealed within a form of Masonic and humanist philanthropy—feeds upon deception, promising apparent solutions in exchange for apostasy; at the same time, it notes that this satanic religious imposture unveils the “Mystery of Iniquity” that pursues those faithful Catholics who remain steadfast in the True Faith of Jesus Christ.

Soloviev noted that the Antichrist “will seek the consensus of all Christian confessions, granting something to each of them. The masses will follow him, with the exception of small groups of Catholics, Orthodox, and Protestants.”

He explains that he will grant something to each distinct and opposing Christian confession in order to win the favor of their adherents—specifically, he mentioned Protestants, the Orthodox, and Catholics. It is worth noting that Soloviev simply points out that the Antichrist establishes pacts with Christians, given that it is they who, by entering into an alliance with the Devil, become apostates—since those who worship false gods—such as the *Pachamamistas*, as well as idolatrous Muslims, along with all other false religions—already belong to him: all idolaters and atheists who violate the First Commandment belong to the Devil, just as do all unrepentant fornicators who rebel against God by transgressing divine natural law. And all those who, disobeying the laws of God, obstinately persist in sin.


Let us recall that, with the permission and suggestion of Prevost, the Church of the Gesù also was profaned by the apostate Francesco Savino with a sacrilegious Mass for homosexual concubines—a sacrilege instigated by Prevost himself.



Monday, April 27, 2026

Prevost’s Anglican Betrayal

 In another act of public apostasy, Prevost joins in public "prayer" with the unrepentant heretic and pro-gay, pro-abortion advocate Sarah Mullally—thereby profaning St. Peter's Basilica and the priesthood and mocking the papacy.

Robert Prevost mocks the priesthood instituted by Christ. 

                                

When Prevost promoted the sacrilegious “informal” blessing for unrepentant concubines, he revealed his Marxist synodal agenda: “Equal freedom for men and women, freedom of religion—all of that would take priority over that particular issue.”

The Church teaches that Anglican orders are "absolutely null and utterly invalid."

The 'blessings' of heretics are invalid.

The Church teaches that heretics cannot validly administer even sacramentals—such as blessings, consecrations, and exorcisms.

Code of Canon Law

An excommunicated person is forbidden to celebrate sacramentals

An apostate from the faith, a heretic, or a schismatic incurs a Latae sententiae excommunication; […] An excommunicated person is forbidden: 1/ to have any ministerial participation in celebrating the sacrifice of the Eucharist or any other ceremonies of worship whatsoever; 2/ to celebrate the sacraments or sacramentals and to receive the sacraments; 3/ to exercise any ecclesiastical offices, ministries, or functions whatsoever or to place acts of governance. (Code of Canon Law, can. 1364 §1; can. 1331 §1) 

 

Prevost mocks the priesthood, the Papacy, and the Church founded by Christ.

Apostate Robert Prevost: “To The Most Reverend and Right Honourable Dame Sarah Mullally Archbishop of Canterbury”

                                      Prevost to heretics: ‘We are already one!’ 


 Saint Cyprian of Carthage – Whoever is separated from the Church and is joined with an adulteress is separated from the promises of the Church.

 

Sacred Scripture
He who receives a heretic shares in his evil works
Anyone who is so ‘progressive’ as not to remain in the teaching of the Christ does not have God; whoever remains in the teaching has the Father and the Son. If anyone comes to you and does not bring this doctrine, do not receive him in your house or even greet him; for whoever greets him shares in his evil works.  (2 Jn: 9-11)

The Church has pronounced a sentence of excommunication against heretical clerics and against those who support heretics.

Saint Thomas Aquinas
The Church forbids the faithful to communicate with those unbelievers who have forsaken the faith they once received, either by corrupting the faith, as heretics, or by entirely renouncing the faith, as apostates, because the Church pronounces sentence of excommunication on both. (Saint Thomas Aquinas. Summa Theologica, II-II, q. 10, a. 9)


Catechism of the Catholic Church
Blessings are granted through the intercession of the Church
Code of Canon Law
An excommunicated person is forbidden to celebrate sacramentals
 
Saint Augustine of Hippo
As an amputated member, a heretic does not possess the life of the Spirit
The Holy Spirit works in the Church what the soul works in all the members of one body. […] It could happen that in a human body, or better, of a human body, a member has to be amputated: a hand, finger or foot. Does the soul by any chance go after the separated member? While it was attached the body, it lived; once amputated, it loses life. In the same way, someone is a Christian Catholic when he lives in the body; separated from it, he becomes a heretic, and the Spirit does not follow the amputated member. Therefore, if you wish to have life in the Holy Spirit, conserve charity, love truth, desire unity and you will reach eternity. (Saint Augustine of Hippo. Sermon 267, 4)

The Anglican heretic—pro-gay and pro-abortion—Sarah Mullally desecrates the tomb of Saint Peter in collaboration with the apostate Flavio Pace

@JhWesten

What is sacrilege! Right in front of the bones of Saint Peter the first of the apostles the fake ‘Archbishop’ gives a blessing while a Catholic Bishop bows


Scivias (Hildegard)
77. Men and women should not wear each other's clothes except in necessity
But as a woman should not wear a man's clothes, she should also not approach the office of My altar, for she should not take on a masculine role either in her hair or in her attire.



The apostates Prevost and Flavio Pace are not in communion with the Church founded by Christ; rather, they openly defy the Church and mock the Catholic priesthood and the Papacy.



Leo I, the Great
The strength of the Holy Spirit is received only from Catholic ministers, not from heretics
In effect, those who have received the baptism of the heretics, having never been baptized before, should be confirmed only with an invocation of the Holy Spirit through the imposition of hands, since they have received merely the form of baptism without the strength of sanctification. […] The ablution should not be profaned with any repetition, but rather, as we have said, one should only invoke the sanctification of the Holy Spirit: so that that which no one receives from the heretics may be received from Catholic priests. (Denzinger-Hünermann 316. Leo I, the Great. Letter Regressus ad nos, c.7, March 21, 458)

 

Lateran Synod
Condemnation of those who do not reject heretics
If anyone according to the holy Fathers, harmoniously with us and likewise with the Faith, does not with mind and lips reject and anathematize all the most abominable heretics together with their impious writings even to one least portion, whom the holy Catholic and apostolic Church of God, that is, the holy and universal five Synods and likewise all the approved Fathers of the Church in harmony, rejects and anathematizes, we mean Sabellius, Arius, Eunomius, Macedonius, Apollinaris, Polemon, Eutyches, Dioscurus, Timothy Aelurus, Severus, Theodosius, Colluthus, Themistius, Paul of Samosata , Diodorus, Theodore, Nestorius, Theodulus the Persian, Origen, Didymus, Evagrius, and briefly all the remaining heretics, […] let such a person be condemned. (Denzinger-Hünermann 518-520. Lateran Synod, Against the Monothelites, October 31, 649)



The apostate Prevost obstinately endorses the same heresies as his apostate mentor, Jorge Bergoglio, of unhappy memory.




Apostate Jorge Bergoglio: In Argentina, we worked together a lot with the pastors. In Buenos Aires, I got together with a group of pastors who were friends, and we prayed together. And that helped those of us who were more serious to work together. So, you see, the word ‘sect’ gets diluted







Pope Leo XIII

  • It breaks away from the Apostolic succession

In the rite of conferring and administering any sacrament one rightly distinguishes between the ceremonial part and the essential part, which is customarily called the matter and form. […] Now, the words which until recent times were everywhere held by the Anglicans as the proper form of priestly ordination, namely, ‘Receive the Holy Spirit,’ certainly do not in the least signify definitely the order of priesthood, or its grace and power, which is especially the power ‘of consecrating and of offering the true Body and Blood of the Lord,’ in that sacrifice which is no ‘nude commemoration of the sacrifice offered on the Cross’ [see n. 950]. Such a form was indeed afterwards lengthened by these words, ‘for the office and work of a priest’; but this rather convinces one that the Anglicans themselves saw that this first form was defective, and not appropriate to the matter. But the same addition, if perchance indeed it could have placed legitimate significance on the form, was introduced too late, since a century had elapsed after the adoption of the Edwardine Ordinal; since, moreover, with the extinction of the hierarchy, there was now no power for ordaining. (Denzinger-Hünermann 3315-3316. Leo XIII, Letter Apostolicae curae – On the Nullity of Anglican Orders, September 13, 1896)

Compendium of the Catholic Church
Why is the Church one?
The Church is one because she has as her source and exemplar the unity of the Trinity of Persons in one God. As her Founder and Head, Jesus Christ re-established the unity of all people in one body. As her soul, the Holy Spirit unites all the faithful in communion with Christ. The Church has but one faith, one sacramental life, one apostolic succession, one common hope, and one and the same charity. (Compendium of the Catholic Church, no. 161)

Christ said “My Church” and not “my churches”
Saint Cyprian of Carthage
Unity cannot be severed, nor can one body be separated by a division of its structure
God is one, and Christ is one, and His Church is one, and the faith is one, and the people is joined into a substantial unity of body by the cement of concord. Unity cannot be severed; nor can one body be separated by a division of its structure, nor torn into pieces, with its entrails wrenched asunder by laceration. (Saint Cyprian of Carthage. The Unity of the Church, no. 23)

The bonds of unity of the Church
What are these bonds of unity? Above all, charity ‘binds everything together in perfect harmony’ (Col 3:14). But the unity of the pilgrim Church is also assured by visible bonds of communion: – profession of one faith received from the Apostles; common celebration of divine worship, especially of the sacraments; apostolic succession through the sacrament of Holy Orders, maintaining the fraternal concord of God’s family. (Catechism of the Catholic Church, no. 815)
Saint Vincent of Lerins
Faced with false apostles, prophets and teachers, what are Catholics and the sons of Mother Church to do?
But it will be said, If the words, the sentiments, the promises of Scripture, are appealed to by the Devil and his disciples, of whom some are false apostles, some false prophets and false teachers, and all without exception heretics, what are Catholics and the sons of Mother Church to do? How are they to distinguish truth from falsehood in the sacred Scriptures? They must be very careful to pursue that course which, in the beginning of this Commonitory, we said that holy and learned men had commended to us, that is to say, they must interpret the sacred Canon according to the traditions of the Universal Church and in keeping with the rules of Catholic doctrine, in which Catholic and Universal Church, moreover, they must follow universality, antiquity, consent. (Saint Vincent of Lerins. Commonitory, Ch. 27, no. 70)
Heretics handed over to Satan
Some, by rejecting conscience, have made a shipwreck of their faith, among them Hymenaeus and Alexander, whom I have handed over to Satan to be taught not to blaspheme. (1Tim 1:19-20)

Leo XIII
Whosoever is separated from the Church is united to an adulteress
The Church of Christ, therefore, is one and the same forever; those who leave it depart from the will and command of Christ, the Lord – leaving the path of salvation they enter on that of perdition. ‘Whosoever is separated from the Church is united to an adulteress. 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’ (S. Cyprianus, De Cath. Eccl. Unitate, n. 6). (Leo XIII. Encyclical Satis cognitum, no. 5, June 29, 1896)