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Soldiers of the Immaculate with Fr. Isaac #059: Study the Faith, Not Just the Catechism!

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In this episode Father discusses the continuing crisis in the Catholic Church, criticizing recent actions and statements associated with Pope Leo 14th, Vatican officials, and various bishops as departures from traditional Catholic doctrine and governance. Catholics should remain steadfast during the present confusion by relying on Sacred Scripture, Sacred Tradition, the teachings of the Church Fathers, and especially the principles articulated by St. Vincent of Lérins for discerning truth from error. We must remain steadfast in prayer, study, devotion to the Rosary, perseverance through coming trials, and confidence in the eventual Triumph of the Immaculate Heart of Mary!

Links, Reading Material, and Books:

"Video" versions of the podcasts are posted to Odysee, Rumble and sometimes on YouTube (The censors at YouTube don't like Father's preaching so we're not posting everything because we don't want his channel nuked).

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

If you would like to mail a card, letter, or donation to Father Isaac you can do so at the following address:

Franciscan Friars of Our Lady of Good Success
974 E Stuart Ave STE D
Box 203
Galax, VA 24333

Checks should be made out to "Franciscan Friars of Our Lady of Good Success" which is a 501(c)(3) non-profit and donations are tax deductible.

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

How to Make a Fruitful Confession

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In this sermon Father teaches us how to make a truly fruitful confession, emphasizing that the sacrament of penance is a necessary means of salvation after mortal sin. He explains in detail the required elements of a valid confession—contrition, confession, and satisfaction—while warning against modern errors, laxity, and misuse of the Sacrament. We must avoid sin, especially occasions of sin, to cultivate true sorrow, and to seek a regular confessor in order to grow in grace and reach heaven.

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

Lenten Mission Sermon: How to Carry Your Cross

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In this sermon Father discusses the necessity of carrying one’s cross in union with Christ through silent patience, generous love, and filial abandonment to God. Suffering is a gift permitted by God for the sanctification of souls and must be embraced with humility, trust, and perseverance through grace. Let us rediscover that the path to true holiness requires sacrifice, fidelity to daily duties, and a deep love of God expressed through accepting all trials.

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Wisdom of the Cross

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In this sermon Father discusses the mystery of the Cross as the central path to salvation, explaining that God’s wisdom often appears as foolishness to the world but it is the means by which souls are purified and saved. Suffering, united to Christ, is not meaningless but a powerful participation in redemption, made possible through grace and the cooperation of the Blessed Virgin Mary. We must to embrace our crosses with love, seeing them as the greatest gift for sanctification and the salvation of our soul.

Links, Reading Material, and Books:

Quotes from the Saints in this sermon:

St. Louis de Montfort: “All those to whom Eternal Wisdom has given Himself have loved the Cross, sought it, and embraced it.”
St. Andrew the Apostle: “O wonderful Cross, so long have I desired thee!”
St. John of the Cross: “To reach satisfaction in all, desire satisfaction in nothing.”
St. Alphonsus Liguori: “He who wishes to be saved must embrace the Cross.”
St. Paul (Apostle): “We preach Christ crucified, a stumbling block… but the power and wisdom of God.”

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Church Militant: Standing Firm in the Final Battle

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In this Lenten Mission sermon Father discusses the meaning of Holy Week through the lens of spiritual warfare, emphasizing the necessity of fidelity to Christ and His Church as the sole path to salvation. The Church is the Church Militant and Catholics need to actively engage in prayer, sacrifice, and defense of the Faith amid widespread apostasy and internal corruption. We need to persevere and maintain devotion to the sacraments and the Blessed Virgin, being ready to suffer as the Church endures her present and intensifying crisis.

Links, Reading Material, and Books:

Quotes from the Saints in this sermon:

“You must study the science of the saints.” — St. John Vianney
“Be it done to me according to thy word.” — The Blessed Virgin Mary (Luke 1:38)
“Aim high… when you aim low, you miss.” — St. Maximilian Kolbe
“I am the vine, you are the branches; without me you can do nothing.” — Jesus Christ (John 15:5)
“Put on the armor of God.” — St. Paul (Ephesians 6)

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Secret to Defeat Satan’s Greatest Weapons

Father Isaac was interviewed recently by John-Henry Weston; in this interview Father pulls no punches in this unflinching interview on the spiritual mechanics of sin and the path to real freedom. With arresting clarity, he exposes what too often goes unnamed: mortal sin is not merely weakness, it is a deliberate act of telling God, “Get out. I don’t want You.”

He warns against treating confession as a revolving door while continuing the same behavior without amendment, and he dismantles the culture of blame that externalizes sin onto the devil, trauma, or society. “Stop blaming the devil for what you’re choosing,” he insists, calling men especially to accountability, discipline, and decisive action. The message is urgent, pastoral, and uncompromising: God’s mercy is real, but it is not sentimental. Grace demands cooperation, and freedom requires the courage to face oneself first.

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

Why Marian Doctrine Matters

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In this sermon Father discusses the Catholic doctrine that the Blessed Virgin Mary is rightly called Co-Redemptrix and Mediatrix of all Graces, that these titles belong to the deposit of faith and are consistently taught by Scripture, Tradition, the Fathers, Doctors, Saints, and Popes. Denying these Marian titles undermines authentic Christology, rejects the Church’s historical teaching authority, and results in doctrinal collapse masked by false ecumenism. We need unwavering devotion to Our Lady, especially in the present age of crisis, presenting her as God’s chosen instrument for the final victory over error and the salvation of souls.

Key quotes from this sermon:

St. Louis de Montfort: “God wishes to make Mary better known in the latter times.”
St. Alphonse Liguori: “If you call on Our Lady promptly in temptation, it is an infallible sign that you will not fall.”
St. Maximilian Kolbe: “Mary is Co-Redemptrix because she is the Immaculate Conception, uniquely united to the Holy Ghost.”
St. Vincent of Lérins: “We must hold what has been believed everywhere, always, and by all.”
St. Jerome: “The whole world groaned and was astonished to find itself Arian.”
St. John Eudes: “All the Fathers of the Church clearly teach that Mary is Co-Redemptrix with Christ in the work of salvation.”

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Assumption of Mary: Triumph of Love

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In this sermon Father discusses the dogma of the Assumption of the Blessed Virgin Mary as defined by Pope Pius XII, emphasizing the Church’s infallible authority to proclaim divinely revealed truths and the necessity of assenting to every dogma of the Catholic faith. Mary’s Assumption is inseparable from her perfect detachment from sin and the world, her total conformity to the will of God, and her unique participation in Christ’s redemptive work through love, suffering, and humility. Let us imitate Mary and the saints by practicing detachment, living sacramentally, preparing daily for death, and trusting in Our Lady’s powerful intercession for perseverance and salvation.

Key quotes from this sermon:

St. Thomas Aquinas: “To reject one dogma is to reject them all.”
St. Robert Bellarmine: The Art of Dying Well — “To die well, one must first die to the world.”
St. Bernard of Clairvaux: “Blessed is that death which is purchased at any price.”
St. Francis of Assisi: “My God and my all.”
St. John of the Cross: “One may be attached even to something holy, such as a rosary.”
St. Augustine of Hippo: “Before sin, the devil tells you God is merciful; after sin, he tells you God will never forgive.”
St. Alphonsus Liguori: “As you live, so you will die.”
St. John Vianney: Assurance given to Augustine Cohen regarding his mother’s salvation through Marian intercession.
St. Bernardine of Siena: Christ Himself went forth to meet His Mother at her Assumption.
St. Anselm of Canterbury: Christ ascended first in order to prepare and accompany Mary to her heavenly throne.
St. Peter Damian: The Assumption of Mary surpasses even the Ascension in splendor.
St. John Damascene: Christ Himself gave Mary Holy Viaticum before her Dormition.

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Woman, the Serpent, and the Triumph of the Immaculate Heart

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In this sermon Father discusses the divine motherhood of the Blessed Virgin Mary as the foundation of all Marian doctrine and as inseparable from authentic Christology and the Catholic Faith. Attacks on Mary’s titles — especially Mother of God, Mediatrix of all Graces, and Co-Redemptrix — are signs of doctrinal collapse foretold by saints, councils, and Marian apparitions. Heresy against Mary inevitably leads to heresy against Christ; we need to remain steadfast, to defend revealed dogma even amid ecclesial confusion, and to deepen devotion to Our Lady — particularly through the Rosary — as a sign of fidelity and perseverance unto salvation.

Key quotes from this sermon:

St. Louis de Montfort: “Whoever wishes to possess Jesus must possess Mary.”
St. Alphonse Liguori: “One good priest leads thousands to heaven; one bad priest leads thousands to hell.”
St. Louis de Montfort: “Jesus is the fruit of Mary, and Mary is the true tree of life.”
St. Justin Martyr: “The Virgin Mary became the cause of salvation for herself and for the whole human race.”
St. Irenaeus of Lyons: “The knot of Eve’s disobedience was loosed by the obedience of Mary.”
St. Augustine: “The elect are carried in the womb of Mary until she brings them forth into eternal glory.”
St. Catherine of Siena: “This vice [sodomy] is so abominable that even the demons turn away in horror.”

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.

The Immaculate Conception: Dogma, Defense, and Devotion

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In this sermon Father discusses the Immaculate Conception, explaining how Blessed Duns Scotus resolved theological difficulties by arguing that it was fitting for God to preserve His mother from original sin, a doctrine later defined as dogma by Pope Pius 9th. Mary is the “woman” of Genesis who crushes the serpent’s head, and as the “mold of God,” she serves as the perfect mediator to help the faithful be transformed into Christ. We need to practice total consecration to the Immaculate, imitating her virtues and relying on her intercession as it is the surest path to salvation and victory in spiritual warfare.

Key quotes from this sermon:

St. Augustine: “Mary was the only one who merited to be called the mother and spouse of God.”
St. Augustine: “For sin never had any entry into the soul of the Blessed Virgin.”
St. Bernard of Clairvaux: “Thou alone was found worthy to be chosen as the one in whose virginal womb the king of kings should have his first abode.”
St. Bernard of Clairvaux: “Noah’s ark was a type of Mary, for as by its means men were preserved from the deluge, so are we all preserved by Mary from the shipwreck of sin.”
St. Bonaventure: “It was becoming that the Blessed Virgin Mary by whom our shame was to be blotted out and by whom the devil was to be conquered should never even for a moment have been under her dominion.”
St. Thomas Aquinas: “It was necessary that he, Christ, who was to take away sin, should be separated from sin as to the fault under which Adam lay.”
St. Ambrose: “Christ chose this vessel unto which he was about to descend not avert but from heaven and he consecrated it a temple of purity.”
St. Louis de Montfort: “I still would choose the immaculate way of Mary. It is a way a road without stain or spot without original sin or actual sin without shadow or darkness.”
St. Louis de Montfort: “Mary is the great mold of God fashioned by the Holy Ghost to give human nature to a man who is God… and to fashion through the grace men who are like to God.”
St. John Damascene: “O Blessed Virgin, thou was born and thou mightiest minister to the salvation of the whole world.”

Links, Reading Material, and Books:

To financially support the work of Fr. Isaac you can donate to him via the following:

Mailing address

To submit questions for future episodes send email to podcast@soti.blog -- for emails SPECIFICALLY for Father and ONLY for Father, send emails to father@soti.blog

This podcast is produced by Supernerd Media.