Regarding the day, year, and manner of Our Lady's death, nothing certain is known. The earliest known literary reference to the Assumption is found in the Greek work De Obitu S. Dominae. Catholic faith, however, has always derived our knowledge of the mystery from Apostolic Tradition. Epiphanius (d. 403) acknowledged that he knew nothing definite about it (Haer., lxxix, 11). The dates assigned for it vary between three and fifteen years after Christ's Ascension. Two cities claim to be the place of her departure: Jerusalem and Ephesus. Common consent favours Jerusalem, where her tomb is shown; but some argue in favour of Ephesus. The first six centuries did not know of the tomb of Mary at Jerusalem.
The belief in the corporeal assumption of Mary is founded on the apocryphal treatise De Obitu S. Dominae, bearing the name of St. John, which belongs however to the fourth or fifth century. It is also found in the book De Transitu Virginis, falsely ascribed to St. Melito of Sardis, and in a spurious letter attributed to St. Denis the Areopagite. If we consult genuine writings in the East, it is mentioned in the sermons of St. Andrew of Crete, St. John Damascene, St. Modestus of Jerusalem and others. In the West, St. Gregory of Tours (De gloria mart., I, iv) mentions it first. The sermons of St. Jerome and St. Augustine for this feast, however, are spurious. St. John of Damascus (P. G., I, 96) thus formulates the tradition of the Church of Jerusalem:
Assumption of Mary
In the Constitution Ineffabilis Deus of 8 December, 1854, Pius IX pronounced and defined that the Blessed Virgin Mary "in the first instance of her conception, by a singular privilege and grace granted by God, in view of the merits of Jesus Christ, the Saviour of the human race, was preserved exempt from all stain of original sin."
"The Blessed Virgin Mary . . ." The subject of this immunity from original sin is the person of Mary at the moment of the creation of her soul and its infusion into her body.
". . .in the first instance of her conception . . ." The term conception does not mean the active or generative conception by her parents. Her body was formed in the womb of the mother, and the father had the usual share in its formation. The question does not concern the immaculateness of the generative activity of her parents. Neither does it concern the passive conception absolutely and simply (conceptio seminis carnis, inchoata), which, according to the order of nature, precedes the infusion of the rational soul. The person is truly conceived when the soul is created and infused into the body. Mary was preserved exempt from all stain of original sin at the first moment of her animation, and sanctifying grace was given to her before sin could have taken effect in her soul.
". . .was preserved exempt from all stain of original sin. . ." The formal active essence of original sin was not removed from her soul, as it is removed from others by baptism; it was excluded, it never was in her soul. Simultaneously with the exclusion of sin. The state of original sanctity, innocence, and justice, as opposed to original sin, was conferred upon her, by which gift every stain and fault, all depraved emotions, passions, and debilities, essentially pertaining to original sin, were excluded. But she was not made exempt from the temporal penalties of Adam -- from sorrow, bodily infirmities, and death.
Immaculate conception