Fr. Peter Scott covered this subject at length in 2010.

http://www.angelusonline.org/index.php?section=articles&subsection=show_article&article_id=2895

3rd Portion-Is just rehash of things many doctrinal errors that people are already aware of;

I clicked thumbs up instead of quote.
Once people are aware of the doctrinal errors they don't need to waste time on the nitty gritty.
If you know something is poison you don't have to send it to a lab to be analysed.  Enough is known about Faustina to convince anyone with a brain.  The rest is a waste of precious time.

The excessive pride in Faustina's diary is due to Polish messianism and most likely written by someone who was a Mariavite or well acquainted with them. The Mariavites had female priests and gave communion under both species.  When you understand this, then you understand why the diary contains so many references to her holding the host in her hand, standing on the altar dispensing graces, holding sacred vessels and receiving communion under both species.

Interesting. I haven't yet watched the videos, so I apologize if this is covered in detail, but of note is that Pope St. Pius X in the Encyclical Tribus circiter suppressed the Mariavite order in 1906.

TRIBUS CIRCITER

ENCYCLICAL OF POPE PIUS X
 ON THE MARIAVITES OR MYSTIC PRIESTS OF POLAND
 TO OUR VENERABLE BRETHREN,
THE ARCHBISHOPS OF WARSAW, AND BISHOPS OF PLOTSK
 AND LUBLIN AMONG THE POLES

Venerable Brethren, Health and the Apostolic Benediction.

About three years ago this Apostolic See was duly informed that some priests, especially among the junior clergy of your dioceses, had founded, without permission from their lawful Superiors, a kind of pseudo-monastic society, known as the Mariavites or Mystic Priests, the members of which, little by little, turned aside from the right road and from the obedience they owe the Bishops "whom the Holy Ghost has placed to rule the Church of God," and became vain in their thoughts.

2. To a certain woman, whom they proclaimed to be most holy, marvelously endowed with heavenly gifts, divinely enlightened about many things, and providentially given for the salvation of a world about to perish, they did not hesitate to entrust themselves without reserve, and to obey her every wish.

3. Relying on an alleged mandate from God, they set themselves to promote without discrimination and of their own initiative among the people frequent exercises of piety (highly commendable when rightly carried out,) especially the adoration of the Most Holy Sacrament and the practice of frequent communion; but at the same time they made the gravest charges against all priests and bishops who ventured to express any doubt about the sanctity and divine election of the woman, or showed any hostility to the society of the Mariavites. Such a pass did matters reach that there was reason to fear that many of the faithful in their delusion were about to abandon their lawful pastors.

4. Hence, on the advice of Our Venerable Brethren the Cardinals of the General Inquisition, We had a decree issued, as you are aware, under date of September 4, 1904, suppressing the above-named society of priests, and commanding them to break off absolutely all relations with the woman. But the priests in question, notwithstanding that they signed a docuмent expressing their subjection to the authority of their bishops and that perhaps they did, as they say they did, partly break off their relations with the woman, still failed to abandon their undertaking and to renounce sincerely the condemned association. Not only did they condemn your exhortations and inhibitions, not only did many of them sign as audacious declaration in which they rejected communion with their bishops, not only in more places than one did they incite the deluded people to drive away their lawful pastors, but, like the enemies of the Church, asserted that she has fallen from truth and justice, and hence has been abandoned by the Holy Spirit, and that to themselves alone, the Mariavite priests, was it divinely given to instruct the faithful in true piety.

5. Nor is this all. A few weeks ago two of these priests came to Rome: Romanus Prochniewsky and Joannes Kowalski, the latter of whom is recognized, in virtue of some kind of delegation from the woman referred to, as their Superior by all the members of the Society. Both of them, in a petition alleged by them to have been written by the express order of Our Lord Jesus Christ, ask the Supreme Pastor of the Church, or the Congregation of the Holy Office in his name, to issue a docuмent conceived in these terms: "That Maria Francesca (the woman mentioned above) has been made most holy by God, that she is the mother of mercy for all men called and elected to salvation by God in these days; and that all Mariavite priests are commanded by God to promote throughout the world devotion to the Most Holy Sacrament and to the Blessed Virgin Mary of Perpetual Succor, free from all restriction of ecclesiastical or human law or custom, and from all ecclesiastical and human power whatsoever. . ."

6. From these words We were disposed to believe that the priests in question were blinded not so much by conscious pride as by ignorance and delusion, like those false prophets of whom Ezechiel writes: "They see vain things and they foretell lies, saying: The Lord saith: whereas the Lord hath not sent them: and they have persisted to confirm what they have said. Have you not seen a vain vision and spoken a lying divination: and you say: The Lord saith: whereas I have not spoken" (Ezechiel xiii. 6, 7). We therefore received them with piety, exhorted them to put away the deceits of vain revelation, to subject themselves and their works to the salutary authority of their Superiors, and to hasten the return of the faithful of Christ to the safe path of obedience and reverence towards their pastors; and finally to leave to the vigilance of the Holy See and the other competent authorities the task of confirming such pious customs as might seem best adapted for the fuller increase of Christian life in many parishes in your dioceses, and at the same time to admonish any priests who were found guilty of speaking abusively or contemptuously of devout practices and exercises approved by the Church. And We were consoled to see the two priests, moved by Our fatherly kindness, throw themselves at Our feet and express their firm resolution to carry out Our wishes with the devotedness of sons. They then caused to be transmitted to Us a written statement which increased Our hope that these deluded sons would sincerely abandon past illusions and return to the right road:

7. "We (these are their words), always ready to fulfill the will of God, which has now been made so clear to us by His Vicar, do most sincerely and joyfully revoke our letter, which we sent on February 1 of the present year to the Archbishop of Warsaw, and in which we declared that we separated from him. Moreover, we do most sincerely and with the greatest joy profess that we wish to be always united with our Bishops, and especially with the Archbishop of Warsaw, as far as your Holiness will order this of us. Furthermore, as we are now acting in the name of all the Mariavites, we do make this profession of our entire obedience and subjection in the name not only of all the Mariavites, but of all the Adorers of the Most Holy Sacrament. We make this profession in a special way in the name of the Mariavites of Plotsk who, for the same cause as the Mariavites of Warsaw, handed their Bishop a declaration of separation from him. Wherefore, all of us without exception prostrate at the feet of your Holiness, professing again and again our love and obedience to the Holy See, and in a most special way to your Holiness, most humbly ask pardon for any pain we may have caused your fatherly heart. Finally, we declare that we will at once set to work with all our energy to restore peace between the people and their Bishops immediately. Nay, we can affirm that this peace will be really restored very soon."

8. It was, therefore, very pleasant for Us to be able to believe that these sons of Ours, thus pardoned, would at once on their return to Poland give effect to their promises, and on this account We hastened to advise you, Venerable Brethren, to receive them and their companions, now that they professed entire obedience to your authority, with equal mercy and to restore them legally, if their acts corresponded with their promises, to their faculties for exercising their priestly functions.

But the event has deceived Our hopes; for We have learnt by recent docuмents that they have again opened their minds to lying revelations, and that since their return to Poland, they not only have not yet shown you, Venerable Brethren, the respect and obedience they promised, but that they have written to their companions a letter quite opposed to truth and genuine obedience.

9. But their profession of fidelity to the Vicar of Christ is vain in those who, in fact, do not cease to violate the authority of their Bishops. For "by far the most august part of the Church consists of the Bishops, (as Our Predecessor Leo XIII of holy memory wrote in his letter of December 17, 1888, to the Archbishop), inasmuch as this part by divine right teaches and rules men; hence, whoever resists them or pertinaciously refuses obedience to them puts himself apart from the Church. . . On the other hand, to pass judgment upon or to rebuke the acts of Bishops does not at all belong to private individuals - that comes within the province only of those higher than they in authority and especially of the Sovereign Pontiff, for to him Christ entrusted the charge of feeding not only His lambs, but His sheep throughout the world. At most, it is allowed in matters of grave complaint to refer the whole case to the Roman Pontiff, and this with prudence and moderation as zeal for the common good requires, not clamorously or abusively, for in this way dissensions and hostilities are bred, or certainly increased."

10. Idle and deceitful too is the exhortation of the priest Johannes Kowalski to his companions in error on behalf of peace, while he persists in his foolish talk and incitements to rebellion against legitimate pastors and in brazen violation of episcopal commands.

11. Wherefore, that the faithful of Christ and all the so-called Mariavite priests who are in good faith may no longer be led astray by the delusions of the woman above-mentioned and of the priest Johannes Kowalski, We again confirm the decree whereby the society of Mariavites, unlawfully and invalidly founded, is entirely suppressed, and We declare it suppressed and condemned, and We proclaim that the prohibition is still in force which forbids all priests, with the exception of the one whom the Bishop of Plotsk shall in his prudence depute to be her confessor, to have anything whatever to do on any pretext with the woman.

12. You, Venerable Brethren, We earnestly exhort to embrace with paternal charity erring priests immediately they sincerely repent, and not to refuse to call them again, under your direction, to their priestly duties, when they have been duly proved worthy. But should they, which may God forbid, reject your exhortations and persevere in their contumacy, it will be Our care to see that they are severely dealt with. Study to lead back to the right path the faithful of Christ who are now laboring under a delusion that may be pardoned; and foster in your dioceses those practices of piety, recently or long since approved in numerous docuмents issued by the Apostolic See, and do this with all the more alacrity now when by the blessing of God priests among you are enabled to exercise their ministry and the faithful to emulate the example of piety of their fathers.

13. Meanwhile as a pledge of heavenly favors and in evidence of Our paternal good will we bestow most lovingly in the Lord the Apostolic Benediction on you, Venerable Brethren, and on all the clergy and people entrusted to your care and vigilance.

Given at Rome, at St. Peter's, the fifth day of April, MDCCCCVI, in the third year of Our Pontificate.

PIUS X

The woman referred to but not named in several paragraphs above was probably Sr. Feliksa Kozłowska, another supposed visionary who openly disobeyed and split from her Franciscan mentor. So much for claiming a charism intended to imitate our Blessed Mother.

Forward to Faustina's time (with the usual caveats as to Wikpedia as a source for anything), we have:

Following the end of World War I the Second Polish Republic was established. A rise in hostility toward them by the new government caused a decline in Mariavite fortunes and membership declined, with many returning to Catholicism. This trend accelerated in 1921 after Kozłowska died and Kowalski succeeded her as the church's guiding spirit and formal leader.

Kowalski published a biography of Kozłowska with a compilation of her visions and tried to keep her memory alive in the minds of followers while making her authority over her followers his own. The hagiographic nature of this work and the "elevation" of Kozłowska to a status apparently co-equal with that of the Blessed Virgin Mary, if not with the Holy Spirit, was excessive even to many Mariavites. This undermined Kowalski's credibility with the faithful and precipitated the eventual split in the movement. Many of the factual details about Kozłowska's life remained unclear, and some of the myths surrounding her were perpetuated by Kowalski.

More names to listen for in those videos.

So... who's this two and a half hour video for? Those of us who already know it's wrong? I will watch it and it sounds interesting but ood luck trying to get a Novus Ordite to sit through a presentation on Polish history.

Also, only the last 20 minutes are about the core issues. Sounds like this was a hobby project and not done with the goal of converting people.

Thank God MHFM already did the hard work of destroying the divine mercy deception in a powerful and concise format:

https://youtube.com/playlist?list=PLB9wsq--mkdPdufUaUCaQPZAGyfp1OixJ

Mhfm video is good, I also like this playlist by Ascent of mt Carmel.

Interesting. I haven't yet watched the videos, so I apologize if this is covered in detail, but of note is that Pope St. Pius X in the Encyclical Tribus circiter suppressed the Mariavite order in 1906.

The woman referred to but not named in several paragraphs above was probably Sr. Feliksa Kozłowska, another supposed visionary who openly disobeyed and split from her Franciscan mentor. So much for claiming a charism intended to imitate our Blessed Mother.

Forward to Faustina's time (with the usual caveats as to Wikpedia as a source for anything), we have:

More names to listen for in those videos.

Her Franciscan mentor was Fr. Honorat Kozminski.    He was a radical Polish revolutionary setting up illicit secret religious congregations that were used for revolutions against the Russian Tsar.  He praised freemasons and defended socialist radicals.  He was eventually stripped of his leadership position over the congregrations. 

The presentation connects the devotion to Honorat Kozminski.  Sister Faustina's first convent she went to was in the town of Plock and was set up by Honorat Kozminski.  It is less than 1km down the road from the Mariavite headquarters.

And JP2 named him "Blessed".

Her Franciscan mentor was Fr. Honorat Kozminski.    He was a radical Polish revolutionary setting up illicit secret religious congregations that were used for revolutions against the Russian Tsar.  He praised freemasons and defended socialist radicals.  He was eventually stripped of his leadership position over the congregrations.

The presentation connects the devotion to Honorat Kozminski.  Sister Faustina's first convent she went to was in the town of Plock and was set up by Honorat Kozminski.  It is less than 1km down the road from the Mariavite headquarters.

And JP2 named him "Blessed".

Thanks for that clarification. So the various players and their alliances and disagreements become even more complex. I will need to watch the videos. As for JP2, the temporal backstory of Poland reveals the Ostpolitik in Wojtyla's secret ordination of those priests, contra Paul VI's prohibition. It slowly begins to make sense.

All of the intrigues behind this over-hyped devotion might make a person want to agree with Miseremini in Reply #17. Yet it can help for laity to delve deeper as a reminder and a warning of what continues to happen when wolves and false prophets follow their own ungodly priorities.

Perhaps the term "ʝʊdɛօpollock" needs to be added to the lexicon.  They basically used the same play book, claiming victim status, agitating, atrocity propaganda, and of course a fake journal.  Also the fake novus ordo eucharistic miracle in Poland can be added to the list.

Well yes.  Follow the thread back to its origins, and it almost always involves them.  The mystery ends here.  Thanks for the info.  

That history lesson all makes perfect sense, especially since Poland was where all merchants went after getting expelled by Queen Isabella. Perhaps the term "ʝʊdɛօpollock" needs to be added to the lexicon.  They basically used the same play book, claiming victim status, agitating, atrocity propaganda, and of course a fake journal.  Also the fake novus ordo eucharistic miracle in Poland can be added to the list.

Yes.  During the Romantic era, while Poland didn't exist as a country and was part of Russia, they started to believe their suffering made them the "Christ of Europe".  That in and of itself isn't heretical, as we'd should ultimately endeavour to have a life like Christ.  The problem is many of the key cultural leaders were more associated with Fɾҽҽmαsσɳɾყ and gnosticism.  The Catholic Church was merely a symbol of resisting the Tsar and resisting becoming Russianized.  Being Polish and Catholic was seen as being indistinguishable, so that whatever a Pole did, IT WAS CATHOLIC and not heresy or sinful.  Their mentality was if it helped Polish nationalism, in therefore must help Catholicism.  They wouldn't openly preach heresy, but also combating heresy would compromise the nationalist cause.  So outwardly they might be pious and moral, but dogma would take second place.

Being under occupation of the Tsar, the Catholic Poles developed maybe not a love for Jews, but an "enemy of my enemy is my friend" so there was a marriage of convenience to collaborate against the Tsar.  

They put out lies about Maximilian Kolbe during the war.  They will heavily twist the stories of their martyrs for crass political benefit.

If you notice the atrocity propaganda its different between between the Jews and Poles.  For Jews its 6 million jews just magically vanishing in a puff of smoke like they never existed.  Very cold and distant.

For the polish atrocity propaganda its always very personal and intimate - a german soldier injects phenol into the arm of the Pole after humiliating him.