'Immaculate Conception' by Giovanni Battista Tiepolo
The Gospel says that a father left his house early one morning to find hired hands to work in his vineyard. Weren't there people already in that vineyard? Yes, Mary was there; she was born in that vineyard. And what is the vineyard? It is grace.
Yes, Mary was born in it, since she was conceived free of sin. As for us, we were called to it, the Father went looking for us; but Mary was always in it. Oh, such a beautiful worker! She is pure, unspoiled. The Good Lord could have created a more beautiful world than this one, but he could not have created a more perfect creature than Mary. 'St John Vianney and The Immaculate Conception' - after A Moment with Mary)
Yes, Mary was born in it, since she was conceived free of sin. As for us, we were called to it, the Father went looking for us; but Mary was always in it. Oh, such a beautiful worker! She is pure, unspoiled. The Good Lord could have created a more beautiful world than this one, but he could not have created a more perfect creature than Mary. 'St John Vianney and The Immaculate Conception' - after A Moment with Mary)
...God Ineffable -- whose ways are mercy and truth, whose will is omnipotence itself, and whose wisdom "reaches from end to end mightily, and orders all things sweetly" -- having foreseen from all eternity the lamentable wretchedness of the entire human race which would result from the sin of Adam, decreed, by a plan hidden from the centuries, to complete the first work of his goodness by a mystery yet more wondrously sublime through the Incarnation of the Word. This he decreed in order that man who, contrary to the plan of Divine Mercy had been led into sin by the cunning malice of Satan, should not perish; and in order that what had been lost in the first Adam would be gloriously restored in the Second Adam. From the very beginning, and before time began, the eternal Father chose and prepared for his only-begotten Son a Mother in whom the Son of God would become incarnate and from whom, in the blessed fullness of time, he would be born into this world. Above all creatures did God so loved her that truly in her was the Father well pleased with singular delight. Therefore, far above all the angels and all the saints so wondrously did God endow her with the abundance of all heavenly gifts poured from the treasury of his divinity that this mother, ever absolutely free of all stain of sin, all fair and perfect, would possess that fullness of holy innocence and sanctity than which, under God, one cannot even imagine anything greater, and which, outside of God, no mind can succeed in comprehending fully....
...And indeed it was wholly fitting that so wonderful a mother should be ever resplendent with the glory of most sublime holiness and so completely free from all taint of original sin that she would triumph utterly over the ancient serpent...
..The Church made it clear indeed that the conception of Mary is to be venerated as something extraordinary, wonderful, eminently holy, and different from the conception of all other human beings -- for the Church celebrates only the feast days of the saints...
..All are aware with how much diligence this doctrine of the Immaculate Conception of the Mother of God has been handed down, proposed and defended by the most outstanding religious orders, by the more celebrated theological academies, and by very eminent doctors in the sciences of theology. All know, likewise, how eager the bishops have been to profess openly and publicly, even in ecclesiastical assemblies, that Mary, the most holy Mother of God, by virtue of the foreseen merits of Christ, our Lord and Redeemer, was never subject to original sin, but was completely preserved from the original taint, and hence she was redeemed in a manner more sublime....
...Even the Council of Trent itself, when it promulgated the dogmatic decree concerning original sin, following the testimonies of the Sacred Scriptures, of the Holy Fathers and of the renowned Council, decreed and defined that all men are born infected by original sin; nevertheless, it solemnly declared that it had no intention of including the blessed and immaculate Virgin Mary, the Mother of God, in this decree and in the general extension of its definition....
...And indeed, illustrious documents of venerable antiquity, of both the Eastern and the Western Church, very forcibly testify that this doctrine of the Immaculate Conception of the most Blessed Virgin, which was daily more and more splendidly explained, stated and confirmed by the highest authority, teaching, zeal, knowledge, and wisdom of the Church, and which was disseminated among all peoples and nations of the Catholic world in a marvelous manner -- this doctrine always existed in the Church as a doctrine that has been received from our ancestors, and that has been stamped with the character of revealed doctrine....
...These ecclesiastical writers in quoting the words by which at the beginning of the world God announced his merciful remedies prepared for the regeneration of mankind -- words by which he crushed the audacity of the deceitful serpent and wondrously raised up the hope of our race, saying, "I will put enmities between you and the woman, between your seed and her seed"[Gn 3:15] -- taught that by this divine prophecy the merciful Redeemer of mankind, Jesus Christ, the only begotten Son of God, was clearly foretold: That his most Blessed Mother, the Virgin Mary, was prophetically indicated; and, at the same time, the very enmity of both against the evil one was significantly expressed. Hence, just as Christ, the Mediator between God and man, assumed human nature, blotted the handwriting of the decree that stood against us, and fastened it triumphantly to the cross, so the most holy Virgin, united with him by a most intimate and indissoluble bond, was, with him and through him, eternally at enmity with the evil serpent, and most completely triumphed over him, and thus crushed his head with her immaculate foot....
...This sublime and singular privilege of the Blessed Virgin, together with her most excellent innocence, purity, holiness and freedom from every stain of sin, as well as the unspeakable abundance and greatness of all heavenly graces, virtues and privileges -- these the Fathers beheld in that ark of Noah, which was built by divine command and escaped entirely safe and sound from the common shipwreck of the whole world; [Gn 6:9] in the ladder which Jacob saw reaching from the earth to heaven, by whose rungs the angels of God ascended and descended, and on whose top the Lord himself leaned' [Gn 28:12] in that bush which Moses saw in the holy place burning on all sides, which was not consumed or injured in any way but grew green and blossomed beautifully;[Ex 3:2] in that impregnable tower before the enemy, from which hung a thousand bucklers and all the armor of the strong;[Sg 4:4] in that garden enclosed on all sides, which cannot be violated or corrupted by any deceitful plots;[Sg 4:12] as in that resplendent city of God, which has its foundations on the holy mountains;[Ps 87:1] in that most august temple of God, which, radiant with divine splendors, is full of the glory of God; [Is 6:1-4] and in very many other biblical types of this kind. In such allusions the Fathers taught that the exalted dignity of the Mother of God, her spotless innocence and her sanctity unstained by any fault, had been prophesied in a wonderful manner....
...In like manner did they use the words of the prophets to describe this wondrous abundance of divine gifts and the original innocence of the Virgin of whom Jesus was born. They celebrated the august Virgin as the spotless dove, as the holy Jerusalem, as the exalted throne of God, as the ark and house of holiness which Eternal Wisdom built, and as that Queen who, abounding in delights and leaning on her Beloved, came forth from the mouth of the Most High, entirely perfect, beautiful, most dear to God and never stained with the least blemish....
....When the Fathers and writers of the Church meditated on the fact that the most Blessed Virgin was, in the name and by order of God himself, proclaimed full of grace [Luke 1:28] by the Angel Gabriel when he announced her most sublime dignity of Mother of God, they thought that this singular and solemn salutation, never heard before, showed that the Mother of God is the seat of all divine graces and is adorned with all gifts of the Holy Spirit. To them Mary is an almost infinite treasury, an inexhaustible abyss of these gifts, to such an extent that she was never subject to the curse and was, together with her Son, the only partaker of perpetual benediction. Hence she was worthy to hear Elizabeth, inspired by the Holy Spirit, exclaim: "Blessed are you among women, and blessed is the fruit of your womb."[Luke:1:28]...
After Apostolic Constitution "Ineffabilis Deus" issued by Pope Pius IX on December 8, 1854.