The Infallible Teaching of the Catholic Church
“Wherefore, in humility and fasting, we unceasingly offered our private prayers as well as the public prayers of the Church to God the Father through his Son, that he would deign to direct and strengthen our mind by the power of the Holy Spirit. In like manner did we implore the help of the entire heavenly host as we ardently invoked the Paraclete. Accordingly, by the inspiration of the Holy Spirit, for the honor of the Holy and undivided Trinity, for the glory and adornment of the Virgin Mother of God, for the exaltation of the Catholic Faith, and for the furtherance of the Catholic religion, by the authority of Jesus Christ our Lord, of the Blessed Apostles Peter and Paul, and by our own: We declare, pronounce, and define that the doctrine which holds that the most Blessed Virgin Mary, in the first instance of her conception, by a singular grace and privilege granted by Almighty God, in view of the merits of Jesus Christ, the Savior of the human race, was preserved free from all stain of original sin, is a doctrine revealed by God and therefore to be believed firmly and constantly by all the faithful. Hence, if anyone shall dare -- which God forbid! -- to think otherwise than as has been defined by us, let him know and understand that he is condemned by his own judgment; that he has suffered shipwreck in the faith; that he has separated from the unity of the Church; and that, furthermore, by his own action he incurs the penalties established by law if he should are to express in words or writing or by any other outward means the errors he think in his heart.”
-Blessed Pope Pius IX, Ineffabilis Deus, 8 December 1854
Further Teaching from the Fathers and Doctors of the Church
“The report concerning the child was noised abroad in Bethlehem. Some said, ‘The Virgin Mary has given birth before she was married two months.’ And many said, ‘She has not given birth; the midwife has not gone up to her, and we heard no cries of pain’"
-Ascension of Isaiah, 11 – 70 AD
“So the Virgin became a mother with great mercies. And she labored and bore the Son, but without pain, because it did not occur without purpose. And she did not seek a midwife, because he caused her to give life. She bore as a strong man, with will . . . "
-Odes of Solomon,19 – 80 AD
“[Jesus] became man by the Virgin so that the course which was taken by disobedience in the beginning through the agency of the serpent might be also the very course by which it would be put down. Eve, a virgin and undefiled, conceived the word of the serpent and bore disobedience and death. But the Virgin Mary received faith and joy when the angel Gabriel announced to her the glad tidings that the Spirit of the Lord would come upon her and the power of the Most High would overshadow her, for which reason the Holy One being born of her is the Son of God. And she replied ‘Be it done unto me according to your word’ [Luke 1:38]"
-Saint Justin Martyr, Dialogue with Trypho the Jew, 100 – 155 AD
“Consequently, then, Mary the Virgin is found to be obedient, saying, ‘Behold, O Lord, your handmaid; be it done to me according to your word.’ Eve, however, was disobedient, and, when yet a virgin, she did not obey. Just as she, who was then still a virgin although she had Adam for a husband—for in paradise they were both naked but were not ashamed; for, having been created only a short time, they had no understanding of the procreation of children, and it was necessary that they first come to maturity before beginning to multiply—having become disobedient, was made the cause of death for herself and for the whole human race; so also Mary, betrothed to a man but nevertheless still a virgin, being obedient, was made the cause of salvation for herself and for the whole human race. . . . Thus, the knot of Eve’s disobedience was loosed by the obedience of Mary. What the virgin Eve had bound in unbelief, the Virgin Mary loosed through faith"
-Saint Irenaeus, Against Heresies, 3:22:24, 189 AD
“The Lord then was manifestly coming to his own things, and was sustaining them by means of that creation that is supported by himself. He was making a recapitulation of that disobedience that had occurred in connection with a tree, through the obedience that was upon a tree [i.e., the cross]. Furthermore, the original deception was to be done away with—the deception by which that virgin Eve (who was already espoused to a man) was unhappily misled. That this was to be overturned was happily announced through means of the truth by the angel to the Virgin Mary (who was also [espoused] to a man). . . . So if Eve disobeyed God, yet Mary was persuaded to be obedient to God. In this way, the Virgin Mary might become the advocate of the virgin Eve. And thus, as the human race fell into bondage to death by means of a virgin, so it is rescued by a virgin. Virginal disobedience has been balanced in the opposite scale by virginal obedience. For in the same way, the sin of the first created man received amendment by the correction of the First-Begotten"
-Saint Irenaeus, Against Heresies, 5:19:1, 189 AD
“And again, lest I depart from my argumentation on the name of Adam: Why is Christ called Adam by the apostle [Paul], if as man he was not of that earthly origin? But even reason defends this conclusion, that God recovered his image and likeness by a procedure similar to that in which he had been robbed of it by the devil. It was while Eve was still a virgin that the word of the devil crept in to erect an edifice of death. Likewise through a virgin the Word of God was introduced to set up a structure of life. Thus what had been laid waste in ruin by this sex was by the same sex reestablished in salvation. Eve had believed the serpent; Mary believed Gabriel. That which the one destroyed by believing, the other, by believing, set straight"
-Tertullian, The Flesh of Christ, 17:4, 210 AD
“If therefore it might come to pass by the power of your grace, it has appeared right to us your servants that, as you, having overcome death, do reign in glory, so you should raise up the body of your Mother and take her with you, rejoicing, into heaven. Then said the Savior [Jesus]: ‘Be it done according to your will’"
-Pseudo-Melito, The Passing of the Virgin, 16:2–17, 300 AD
“You alone and your Mother are more beautiful than any others, for there is no blemish in you nor any stains upon your Mother. Who of my children can compare in beauty to these?"
-Saint Ephraim the Syrian – Doctor of the Church, Nisibene Hymns, 27:8, 361 AD
“Mary’s life should be for you a pictorial image of virginity. Her life is like a mirror reflecting the face of chastity and the form of virtue. Therein you may find a model for your own life . . . showing what to improve, what to imitate, what to hold fast to"
-Saint Ambrose of Milan – Doctor of the Church, The Virgins, 2:2:6, 377 AD
“The first thing which kindles ardor in learning is the greatness of the teacher. What is greater [to teach by example] than the Mother of God? What more glorious than she whom Glory Itself chose? What more chaste than she who bore a body without contact with another body? For why should I speak of her other virtues? She was a virgin not only in body but also in mind, who stained the sincerity of its disposition by no guile, who was humble in heart, grave in speech, prudent in mind, sparing of words, studious in reading, resting her hope not on uncertain riches, but on the prayer of the poor, intent on work, modest in discourse; wont to seek not man but God as the judge of her thoughts, to injure no one, to have goodwill towards all, to rise up before her elders, not to envy her equals, to avoid boastfulness, to follow reason, to love virtue. When did she pain her parents even by a look? When did she disagree with her neighbors? When did she despise the lowly? When did she avoid the needy?"
-Saint Ambrose of Milan – Doctor of the Church, The Virgins, 2:2:7, 377 AD
“Come, then, and search out your sheep, not through your servants or hired men, but do it yourself. Lift me up bodily and in the flesh, which is fallen in Adam. Lift me up not from Sarah but from Mary, a virgin not only undefiled, but a virgin whom grace had made inviolate, free of every stain of sin"
-Saint Ambrose of Milan – Doctor of the Church, Commentary on Psalm, 118:22–30, 387 AD
"Receive me not from Sarah, but from Mary; that it may be an uncorrupted Virgin, a Virgin free by grace from every stain of sin"
-Saint Ambrose of Milan – Doctor of the Church, In Ps. cxviii. s. 22
“Our Lord . . . was not averse to males, for he took the form of a male, nor to females, for of a female he was born. Besides, there is a great mystery here: that just as death comes to us through a woman, life is born to us through a woman; that the devil, defeated, would be tormented by each nature, feminine and masculine, as he had taken delight in the defection of both"
-Saint Augustine – Doctor of the Church, Christian Combat, 22:24, 396 AD
“That one woman is both mother and virgin, not in spirit only but even in body. In spirit she is mother, not of our head, who is our Savior himself—of whom all, even she herself, are rightly called children of the bridegroom—but plainly she is the mother of us who are his members, because by love she has cooperated so that the faithful, who are the members of that head, might be born in the Church. In body, indeed, she is the Mother of that very head"
-Saint Augustine – Doctor of the Church, Holy Virginity, 6:6, 401 AD
“Having excepted the holy Virgin Mary, concerning whom, on account of the honor of the Lord, I wish to have absolutely no question when treating of sins—for how do we know what abundance of grace for the total overcoming of sin was conferred upon her, who merited to conceive and bear him in whom there was no sin?—so, I say, with the exception of the Virgin, if we could have gathered together all those holy men and women, when they were living here, and had asked them whether they were without sin, what do we suppose would have been their answer?"
-Saint Augustine – Doctor of the Church, Nature and Grace, 36:42, 415 AD
“Mary was not infected by the venomous breath of the serpent."
-Origen, In Div. hom. 1
“Mary was immaculate, and remote from all stain of sin."
-Saint Ephraim the Syrian – Doctor of the Church, Orat. Ad Deip.
“’Hail, full of grace.’ By these words the angel shows that she was altogether excluded from the wrath of the first sentence, and restored to the full grace of blessing."
-Saint Augustine – Doctor of the Church, Sermon 123
"Nor did justice endure that that vessel of election should be open to common injuries; for being far exalted above others, she partook of their nature, not of their sin"
-Saint Cyprian, Commentary on Psalm 77, De Chr. Op. De Nat.).
"He who formed the first Virgin without deformity, also made the second one without spot or sin."
-Saint Amphilochius, In S. Deip. et Sim.
"The Virgin is therefore called immaculate, for in nothing was she corrupt."
-Saint Sophronius, In Conc. Oecum. 6, act. 11
“It is evident that she was free from original sin."
-Saint Ildephonsus, Cont. Disp. De Virginit. M.)
St. John Damascene says, that "the serpent never had any access to this paradise."
-Saint John Damascene –Doctor of the Church, In Assumpt.
"That Mary is that uncorrupted earth which God blessed, and was therefore free from all contagion of sin."
-Saint Bruno, In Ps. ci
“That our Sovereign Lady was full of preventing grace for her sanctification; that is, preservative grace against the corruption of original sin.
-Saint Bonaventure – Doctor of the Church, De B. V. s. 2
"It is not to be believed that he, the Son of God, would be born of a Virgin, and take her flesh, were she in the slightest degree stained with original sin."
-Saint Bernardine of Sienna, Quadr. s. 49, p. 1
"Mary was prevented in blessings from her very conception."
-Saint Laurence Justinian, In Annunt
"Thou hast found a singular grace, O most sweet Virgin, that of preservation from original sin."
-Blessed Raymond Jordano, Cont. de V. M. c. 6
“Great indeed was the injury entailed on Adam and all his posterity by his accursed sin; for at the same time that he thereby, for his own great misfortune, lost grace, he also forfeited all the other precious gifts with which he had originally been enriched, and drew down upon himself and all his descendants the hatred of God and an accumulation of evils. But from this general misfortune God was pleased to exempt that Blessed Virgin whom he had destined to be the Mother of the Second Adam—Jesus Christ—who was to repair the evil done by the first.”
-Saint Alphonsus Ligouri, Discourse on the Immaculate Conception
“Still more was it becoming that God should preserve her from original sin, for he destined her to crush the head of that infernal serpent, which, by seducing our first parents, entailed death upon all men: and this our Lord foretold: I will put enemities between thee and the woman, and thy seed and her seed: she shall crush thy head (Gen. 3:15). But if Mary was to be that valiant woman brought into the world to conquer Lucifer, certainly it was not becoming that he should first conquer her, and make her his slave; but it was reasonable that she should be preserved from all stain, and even momentary subjection to her opponent. The proud spirit endeavored to infect the most pure soul of this Virgin with his venom, as he had already infected the whole human race. But praised and ever blessed be God, who, in his infinite goodness, pre-endowed her for this purpose with such great grace, that, remaining always free from any guilt of sin, she was ever able to beat down and confound his pride, as St. Augustine, or whoever may be the author of the commentary on Genesis, says: "Since the devil is the head of original sin, this head it was that Mary crushed: for sin never had any entry into the soul of this Blessed Virgin, which was consequently free from all stain."
-Saint Alphonsus Ligouri, Discourse on the Immaculate Conception