Is there no one who knew about the Dimonds blatant and obvious admission of how they make others sin mortally? They admit it, yet no one seems to care. Don't anyone have something to say and condemn in their behavior? Here's some more quotes from saints:
St. Ignatius of Antioch (c. 50-c. 115)
St. Ignatius warns Catholics to shun heretics and compares them to wild beasts and rabid dogs that bite in secret:
St. Ignatius of Antioch: “There are some, you know, who are accustomed to go around with the Name [of Christ] on their lips while they indulge in certain practices at variance with It and an insult to God. You must shun these men as you would wild beasts: they are rabid dogs that bite in secret; you must beware of them!” (Epistle to the Ephesians)
He teaches Catholics to shun and beware of all heretics, even heretical family members:
St. Ignatius of Antioch: “It is fitting, therefore, that you keep aloof from such persons, and neither in private nor in public speak to them. But flee from all abominable heresies and those who cause schism… Brethren, do not be deceived. If any man follows him who separates from the truth, he shall not inherit the kingdom of God; and if any man does not stay away from the preacher of falsehood, he shall be condemned to Hell… If anyone walks according to a foreign doctrine, he is not of Christ, nor a partaker of His passion. Have no fellowship with such a man, lest you perish along with him, even though he should be your father, your son, your brother, or a member of your family.” (Epistle to the Philadelphians, Chapter 3)
Origen (2rd century)
Origen: “If you eat the words of God in the Church, and also eat them in the ѕуηαgσgυє of the Jєωs, you transgress the commandment which says: "In one House shall it be eaten." (Exodus 12:46).”
St. Cyprian of Carthage (3rd century)
St. Cyprian: “Whoever is separated from the Church must be avoided and fled from; such a man is wrong-headed; he is a sinner and self-condemned. …But if some of the leaders of schism persist in their blind and obstinate foolishness, and if advice for their own good fails to bring them back to the way of salvation, let the rest of you…break away from their ensnaring falsehood. …One must withdraw from those who are engaged in sin; rather, one must fly from them, lest by joining in their evil course and thus taking the wrong road, one should…become involved in the same guilt oneself.” (Of the Catholic Church, nos. 17 and 23)
St. Cyprian: “Peter and Paul the blessed apostles…in their epistles execrated heretics, and warned us to avoid them.” (Epistle 74, par. 6.)
St. Martin of Tours (c. 316-c. 397)
St. Martin of Tours: “I grieve for having been, if only for an hour, in communion with guilty men.” (The Life of Martin, by Sulpitius Severus)
St. Anthony the Abbot (c. 251-c. 357)
St. Anthony the Abbot: “So great is my aversion for the company of heretics, or of conversation with them, that I say we ought not even go near them.” (Psalm)
St. Athanasius: “St. Anthony the Abbot would not speak to a heretic, except to exhort him to the true faith; and he drove all heretics from his mountain, calling them venomous serpents.” (St. Anthony the Hermit)
St. Athanasius: “68. And he [St. Anthony] was altogether wonderful in faith and religious, for he never held communion with the Meletian schismatics, knowing their wickedness and apostasy from the beginning; nor had he friendly dealings with the Manichaeans or any other heretics; or, if he had, only as far as advice that they should change to piety. For he thought and asserted that intercourse with these was harmful and destructive to the soul. In the same manner also he loathed the heresy of the Arians, and exhorted all neither to approach them nor to hold their erroneous belief. And once when certain Arian madmen came to him, when he had questioned them and learned their impiety, he drove them from the mountain, saying that their words were worse than the poison of serpents… 69. …Wherefore have no fellowship with the most impious Arians. For there is no communion between light and darkness.” (Life of Anthony (Vita S. Antoni) N. 68, 69.)
St. Athanasius (296-373)
St. Athanasius teaches the dogma that Catholics are forbidden to attend Mass or any other religious service in non-Catholic churches, which includes the Arian churches even though the Arians still called them Catholic churches. He also teaches the dogma that the Catholic faith must come before churches and other buildings and before the Mass and sacraments:
Letter of Saint Athanasius, Bishop of Alexandria, to his flock: “May God console you! What saddens you is the fact that others have occupied the churches [Catholic churches that became Arian churches; a similar situation to what has happened today] by violence, while during this time you are on the outside. It is a fact that they have the premises—but you have the Apostolic Faith. They can occupy our churches, but they are outside the true Faith. You remain outside the places of worship, but the Faith dwells within you. Let us consider what is more important, the place or the Faith? - The true faith, obviously. Who has lost and who has won in this struggle—the one who keeps the premises or the one who keeps the Faith? True, the premises are good when the Apostolic Faith is preached there; they are holy if everything takes place there in a holy way… You are the ones who are happy: you who remain within the Church by your faith, who hold firmly to the foundations of the Faith which has come down to you from Apostolic Tradition. And if an execrable jealousy has tried to shake it on a number of occasions, it has not succeeded. They are the ones who have broken away from it in the present crisis. No one, ever, will prevail against your faith, beloved brothers. And we believe that God will give us our churches back some day. Thus, the more violently they try to occupy the places of worship, the more they separate themselves from the Church. They claim that they represent the Church; but in reality, they are the ones who are expelling themselves from it and going astray. Even if Catholics faithful to Tradition are reduced to a handful, they are the ones who are the true Church of Jesus Christ.” (Coll. selecta SS. Eccl. Patrum, Caillau and Guillou Vol. 32, pp. 411-412)
St Athanasius, Archbishop of Alexandria, to the Solitaries, Second letter to Monks, Letter 53: “Athanasius to those who practise a solitary life, and are settled in faith in God, most beloved brethren, greeting in the Lord. I thank the Lord who hath given to you to believe in Him, that ye too may have with the saints eternal life. But because there are certain persons who hold with Arius and go about the monasteries with no other object save that under colour of visiting you, and returning from us they may deceive the simple; whereas there are certain who, while they affirm that they do not hold with Arius, yet compromise themselves and worship with his party; I have been compelled, at the instance of certain most sincere brethren, to write at once in order that keeping faithfully and without guile the pious faith which God’s grace works in you, you may not give occasion of scandal to the brethren. For when any sees you, the faithful in Christ, associate and communicate with such people, [or worshipping along with them], certainly they will think it a matter of indifference and will fall into the mire of irreligion. Lest, then, this should happen, be pleased, beloved, to shun those who hold the impiety of Arius, and moreover to avoid those who, while they pretend not to hold with Arius, yet worship with the impious. And we are specially bound to fly from the communion of men whose opinions we hold in execration. If then any come to you, and, as blessed John says, brings with him right doctrine, say to him, All hail, and receive such an one as a brother. But if any pretend that he confesses the right faith, but appear to communicate with those others [the heretics], exhort him to abstain from such communion, and if he promise to do so, treat him as a brother, but if he persist in a contentious spirit [and obstinately continues to have religious communion with known heretics], him avoid. I might greatly lengthen my letter, adding from the divine Scriptures the outline of this teaching. But since, being wise men, you can anticipate those who write, and rather, being intent upon self-denial, are fit to instruct others also, I have dictated a short letter, as from one loving friend to others, in the confidence that living as you do you will preserve a pure and sincere faith, and that those persons, seeing that you do not join with them [the heretics] in worship, will derive benefit, fearing lest they be accounted as impious, and as those who hold with them.”
St. Cyril of Jerusalem: “One might properly and truly say that there is a Church of Evil-doers, that is, the assemblies of the heretics. ...For this reason, the true faith has already delivered to you, by way of safe-guard, the Article: ‘And One Holy Catholic Church’ in order that you may fly from their meetings, and for the rest of your entire life to remain steadfast in the Holy Catholic Church.” (Catechetical Lectures 18:25)
St. Ambrose (340-397)
St. Ambrose: “Therefore, if by the sin of Judas, all the Apostles were put in danger, let us by this warning be on our guard against the unbelieving and against the traitor. ...And let us also drive such a person out of our little ship, so that...while the Lord keeps watch no storm of iniquity shall strike us.” (The Two Ships, 7, Sermon 37)
St. Paphnutius (4th century)
St. Paphnutius: “I cannot communicate with unclean heretics even by a single word!” (Cornelius Lapide)
St. Jerome (c. 340-420)
St. Jerome: “Cut off the decayed flesh, expel the mangy sheep from the fold, lest the whole house, the whole paste, the whole body, the whole flock, burn, perish, rot and die!” (On Galatians 5:9)
St. Cyril of Alexandria (5th century)
St. Cyril of Alexandria: “It is therefore unlawful, and a profanation, and an act the punishment of which is death, to love to associate with unholy heretics, and to unite yourself to their communion.” (On Leviticus 17:3)
Pope St. Leo the Great (5th century)
Pope St. Leo the Great, Sermon 129: “Wherefore, since outside the Catholic Church there is nothing perfect, nothing undefiled, the Apostle declaring that “all that is not of faith is sin” (Romans 14:23), we are in no way likened with those who are divided from the unity of the Body of Christ; we are joined in no communion.”
Pope St. Leo the Great: “There is no concord between the love of this world and the love of God; and he who will not separate himself from the children of this world shall not belong to the children of God.” (On the Beatitudes, Homily 95, Chap. 9)
St. Hermenegild (6th century)
Hermenegild, a young Visigoth prince, was put to death by his heretical father because he courageously refused to receive his Easter Communion from an Arian bishop. The martyr knew that the Eucharist is the sacred symbol of Catholic unity and that we are not allowed to approach the Holy Table in company with those who are not in the true Church. A sacrilegious consecration gives heretics the real possession of the divine mystery, if the priestly character be in him who dares to offer sacrifice to the God whom he blasphemes. But the Catholic, who knows that he may not so much as pray with heretics, shudders at the sight of the profanation and would rather die than take a share by his presence in insulting our Redeemer in that very Sacrifice and Sacrament which were instituted in order that all may be made one in God:
Pope St. Gregory the Great, The Dialogues: “It was the feast of Easter. At an early hour of the night when all was still, his wicked father sent an Arian bishop to him with this message, that if he [Hermenegild] would receive Communion from his hands [the Communion of a sacrilegious consecration] he should be restored to favor. True to his Creator, the man of God gave a merited reproof to the Arian bishop, and, with holy indignation, rejected his sinful offer; for though his body lay prostrate in chains, his soul stood on ground beyond the reach of tyranny. The bishop therefore returned whence he had come. The Arian father raged, and straightaway sent his lictors, bidding them to repair to the prison of the unflinching confessor of the Lord, and murder him on the spot. They obeyed: they entered the prison; they cleft his skull with a sword; they took away the life of the body, and slew what he, the slain one, had sworn to count as vile. Miracles soon followed, which testified to the true glory of Hermenegild…”
If it was a mortal sin to receive Holy Communion from the hands of a notorious heretic then it is a mortal sin now too, and all who claim otherwise with knowledge of the dogmas of the church are excommunicated heretics. Any law that attempts to change this dogmatic law or diminish it in any way is a heretical law that makes a mockery of the blood of Saint Hermenegild.
St. John Damascene (676-749)
St. John Damascene: “With all our strength, therefore, let us never receive communion from or grant it to heretics; ‘Give not that which is holy unto dogs, saith the Lord, neither cast ye your pearls before swine,’ (Matt. 7:6); lest we become partakers in their dishonor and condemnation.” (Patrologia Graeca, vol. 94, col. 1149, 1152, 1153; Also De Fide Orthodoxa (Exposition of the Orthodox Faith), Book IV, Chapter XIII).
St. John the Almsgiver (7th Century)
St. John the Almsgiver, Patriarch of Alexandria, 7th Century AD: “Another thing the blessed man taught and insisted upon with all was never on any occasion whatsoever to associate with heretics and, above all, never to take the Holy Communion with them, ‘even if’, the blessed man said, ‘you remain without communicating all your life, if through stress of circuмstances you cannot find a community of the Catholic Church. For if, having legally married a wife in this world of the flesh, we are forbidden by God and by the laws to desert her and be united to another woman, even though we have to spend a long time separated from her in a distant country, and shall incur punishment if we violate our vows, how then shall we, who have been joined to God through the orthodox faith and the Catholic Church -- as the apostle says: ‘I espoused you to one husband that I might present you as a pure virgin to Christ’ (2 Cor. 11:2) -- how shall we escape from sharing in that punishment which in the world to come awaits heretics, if we defile the orthodox and holy faith by adulterous communion with heretics? For ‘communion’, he said, ‘has been so called because he who has ‘communion’ has things in common and agrees with those with whom he has ‘communion’. Therefore I implore you earnestly, children, never to go near the oratories of the heretics in order to communicate there.’” (Three Byzantine Saints, “The Life of Saint John the Almsgiver”, Translators: Elizabeth Dawes & Norman H. Baynes, St. Vladimir’s Seminary Press, Crestwood: 1977; p. 251)
St. Thomas Aquinas (1225-1274)
St. Thomas Aquinas: “Are heretics and schismatics excommunicated? Yes; they have no part in the Communion of the Saints.” (Catechism of the Summa)
St. Thomas Aquinas: “To know whom to avoid is a great means of saving our souls. Thus, the Church FORBIDS the faithful to communicate with those unbelievers who have forsaken the faith by corrupting it, such as heretics, or by renouncing it, such as apostates... It is for this reason that both divine and human laws command such sinners to be put to death, because there is a greater likelihood of their harming others than of their mending their ways.”
Blessed Margaret Clitherow (1556-1586)
Blessed Margaret Clitherow: “I will not pray with you, nor shall you pray with me; neither will I say "Amen" to your prayers, nor shall you to mine!”
St. Louis Marie de Montfort (1673-1716)
Saint Louis Marie de Montfort: “Since these wretched souls will have to be separated from God and Heaven for all eternity because their place will be in Hell, already here on earth they have to be separated from the company of Christ Our Lord and His servants and hand-maids. Predestinate souls, you who are of God, cut yourselves adrift from those who are damning themselves!” (Secret of the Rosary)
As all with eyes to read can see for themselves, it is abundantly clear that the tradition of the Church is not agreeing with Peter (as he actually have the boldness to claim over and over and over again), but that it rather expose, crush and condemns him completely.
http://www.catholic-saints.net/most-holy-family-monastery-peter-and-michael-dimond-sacraments-from-heretics-article-debate-refuted/