The growing idea of the Immaculate Conception of the Virgin Mary was intellectually linked with an evolving trend in the interpretation of Original Sin, but, more profoundly, it was rooted in a specific psychology and attitude developing historically within the bosom of the western Baroque. The veneration of Panagia and Theotokos by the Orthodox is by no means the same. It is grounded in a spiritual soil of an altogether different kind. (Ways of Russian Theology: The Kiev Academy)
Mary was chosen and elected to become the Mother of the Incarnate Lord… Can we properly define the nature and character of this preparation? We are facing here the crucial antinomy (to which we have alluded above). The Blessed Virgin was representative of the race, i.e. of the fallen human race, of the “old Adam.” But she was also the second Eve; with her begins the “new generation.” She was set apart by the eternal counsel of God, but this “setting apart” was not to destroy her essential solidarity with the rest of mankind. Can we solve this antinomical mystery in any logical scheme? The Roman Catholic dogma of the Immaculate Conception of the Virgin Mary is a noble attempt to suggest such a solution. But this solution is valid only in the context of a particular and highly inadequate doctrine of Original Sin and does not hold outside this particular setting. Strictly speaking, this “dogma” is an unnecessary complication, and an unfortunate terminology only obscures the undisputable truth of the Catholic belief. The “privileges” of the divine Motherhood do not depend upon a “freedom from original sin.” The fullness of grace was truly bestowed upon the Blessed Virgin and her personal purity was preserved by the perpetual assistance of the Spirit. But this was not an abolition of the sin. The sin was destroyed only on the tree of the Cross, and no “exemption” was possible, since it was only the common and general condition of the whole of human existence. It was not destroyed even by the Incarnation itself, although the Incarnation was the true inauguration of the New Creation. The Incarnation was but the basis and starting-point of the redemptive work of Our Lord. And the “Second Man” himself enters into his full glory through the gate of death. Redemption is a complex act, and we have to distinguish most carefully its moments, although they are supremely integrated in the unique and eternal counsel of God. Being integrated in the eternal plan, in the temporal display they are reflected in each other and the final consummation is already prefigured and anticipated in all the earlier stages. There was a real progress in the history of the Redemption. Mary had the grace of the Incarnation, as the Mother of the Incarnate, but this was not yet the complete grace, since the Redemption had not yet been accomplished. Yet her personal purity was possible even in an unredeemed world, or rather in a world that was in process of Redemption. The true theological issue is that of the divine election. The Mother and the Child are inseparably linked in the unique decree of the Incarnation. As an event, the Incarnation is just the turning-point of history, – and the turning-point is inevitably antinomical: it belongs at once to the Old and to the New. The rest is silence. We have to stand in awe and trembling on the threshold of the mystery. (Creation and Redemption, Volume Three in the Collected Works of Georges Florovsky, [Nordland, 1976] 176; 178; 181-183.)
In his paper “The Sinlessness of the Mother of God in St. Nicholas Cabasilas” Orthodox Theologian Christopher Veniamin states, “…[T]hough certainly describable as ‘supranatural’ and even as ‘divine’ (cf. the troparion of the 8th Ode, Second Canon by Basil the Monk, Feast of the Entry of the Most Holy Theotokos into the Temple), yet the Holy Virgin’s birth is not described…as ‘virginal’ or ‘maidenly’. And this certainly seems to be in keeping with the earlier Patristic consensus, summed up in the words of St. John Damascene’s rhetorical exclamation: ‘O loins of Joachim most blessed, out of which came blameless seed’ (On the Nativity of the Theotokos PG 96, 664B.), and ‘Thou (sc. the Mother of God) from us (sc. Adam and Eve) hast inherited a corruptible body’ (On the Dormition of the Theotokos, ibid., 733C).”
The author also asserts: “The essential issue in the whole question of the sinlessness of the Mother of God must be the preservation of the uniqueness of Christ’s sinlessness. Christ’s salvific work would be debased or even nullified if we were to accept that someone else also fulfills the conditions of His sinlessness; if we were to accept, that is, that the Ever-Virgin was free born free from original sin… the secondary issue here is the determination of the exact moment at which divine grace began to act upon the Holy Virgin so as to cleanse and strengthen her, and it is largely on this point that Cabasilas presents a somewhat peculiar line of thought. And while some of his phrases and certain shifts of emphasis could be construed as resembling the opinions of the thirteenth century Scholastics, and even, at times, as diverging from Cabasilas’ immediate predecessors, such a view would not take into account sufficiently the fact his theological presuppositions belong to a fundamentally different world. Indeed, the diversity of opinion in the Patristic tradition is not necessarily mutually exclusive on the question of the Holy Virgin’s sinlessness and purity, as the work of Cabasilas’ contemporary, St. Gregory Palamas, clearly shows, with whom Cabasilas has much in common.” And in closing, Veniamin succinctly concludes, “It has been suggested that Cabasilas ‘overemphasizes’ and ‘over-extols’ the Mother of God, so as to result in a general exaltation of her person and the role she played in our salvation. But surely, this is nothing more than the effusion of Cabasilas’ profound veneration of the Most Holy Mother of God. What is certainly beyond dispute, however, is the fact that nowhere in the theology of St. Nicholas Cabasilas is the immaculate conception accepted, mentioned or inferred.” (The Orthodox Understanding of Salvation: “Theosis” in Scripture and Tradition, pp. 52, 58-59). Veniamin’s testimony is particularly weighty since he is the translator and editor of the English translation of the homilies on Mary the Mother of God by St. Gregory Palamas.
also see Panagia by Vladimir Lossky for another Orthodox perspective on the sinlessness of the Theotokos