Immaculate Conception - Why was it NECESSARY for our Salvation?
Important Key Words in the Dogma of Immaculate Conception:
God has "chosen" and "prepares", this does not pertains to the soul of Mary but to Her "immaculate flesh" as the soul will come from God alone but the creation of immaculate flesh is in the cooperation of St.Joachim and St.Anne.
God had chosen Mary to be the Mother of the Incarnate Word, but the mystery word is "prepares", How does God prepares the existence of Mary? When does his preparation start, is it from the very seed of his earthly Father?
Don't be surprise about the meaning of the name of St.Joachim, it means "God prepares"https://www.sheknows.com/baby-names/name/joachim/.
“O most blessed loins of Joachim from which came forth a spotless seed! O glorious womb of Anne in which a most holy offspring grew.” John of Damascus, Homily I (ante A.D. 749).
"O blessed loins of Joachim, whence the all-pure seed was poured out! O glorious womb of Anna, in which the most holy fetus grew and was formed, silently increasing! O womb in which was conceived the living heaven, wider than the wideness of the heavens." [Ibid, 2; "Fetus" means offspring in Latin. We mention this because in modern societies the term has lost its Latin and (and true) definition and has come to signify a "non-person" for all practical purposes, a distortion for political manipulation------The Web Master]
Note: Full details Why& How St.Joachim "spotless seed"came through can be read here;https://christianity.stackexchange.com/posts/68807/edit
Therefore, the preparation of Mary's existence start with the carrier of the "spotless seed". That's why God in His Wisdom in Genesis3:15 starts the perennial enmity from the "seed".As St.John Paul II teaches that "Mary's enmity towards satan is absolute".Now, for it to become "absolute" meaning there's no room where satan "touches" Mary's existence it must start from the seed.https://www.ewtn.com/library/papaldoc/jp2bvm21.htm
This is where St.John Damascene teaching on "spotless seed" shines through and anchored on Psalm139:16 on the word "unformed body". A man seed not yet united to egg cell of the woman is "unformed".
"...When I was being made in secret,fashioned in the depths of the earth.Your eyes saw my unformed; in your book all are written down; my days were shaped,before one came to be. "(Psalm139:16)
Question? What is the meaning of "unformed"? and it also stated primacy as it says "my days were shaped ,before one came to be".Does this passages pertains to "spotless seed" and Mary being shaped or prepares?
This "ABSOLUTE ENMITY" alone demands the "NECESSITY" of Immaculate Conception and not just at the moment of conception but at the very seed to make it absolute enmity.
MARY’S ENMITY TOWARDS SATAN WAS ABSOLUTE
Pope John Paul II
Mary’s faithful co-operation in the saving work of her Son made it fitting that she should be completely free from sin and share fully in Christ’s gracehttps://www.ewtn.com/library/papaldoc/jp2bvm21.htm
Immaculate soul originates from God, Mary was given a pure soul endowed with singular privelege and many gifts for a Divine purpose destined to Her role of Divine Motherhood and Spiritual Motherhood of all the redeemed.
The giving of "immaculate soul" pose no problem as it is a dogma of the Church contemplated by Blessed Duns Scotus.
But for a body to received an "immaculate soul" it must also be freed not only from "original sin" but also from it's "concupiscence" as the scriptures teaches "nothing defiled shall enter the presence of God/Kingdom".
How to produce an "immaculate body" a flesh & blood free from original sin and concupiscence, in this area God need the cooperation of man in the parents of Mary.
Council of Trent Teaches that Mary's "immaculate body" must overcome;
“For behold I was conceived in iniquities: and in sins did my mother conceive me.”
St. Joachim and St.Anne was both pious and being baptized means the original sin was removed from them, but not the "stain of sin" or the inclination to sin with we called "concupiscence".
Can St.Joachim & St.Anne master the original justice lost by Adam & Eve and overcome concupiscense of the flesh, meaning "lustful inclinations"?
Let' review Council of Trent teaching on transmission of original sin
§ 23. The Transmission of Original Sin
Original sin is transmitted by natural generation. (De fide.)
The Council of Trent says: propagatione, non imitatione transfusum omnibus. D 790. In the baptism of children that is expurgated which they have incurred through generation. D 791.
As original sin is a peccatum naturae, it is transmitted in the same way as human nature, through the natural act of generation. Although according to its origin, it is a single sin (D 790) that is the sin of the head of the race alone (the sin of Eve is not the cause of original sin) it is multiplied over and over again through natural generation whenever a child of Adam enters existence. In each act of generation human nature is communicated in a condition deprived of grace.
The chief cause (causa efficiens principalis) of original sin is the sin of Adam alone. The instrumental cause (causa efficiens instrumentalis) is the natural act of generation, which gives rise to the connection of the individual human being with the head of the race. The actual concupiscence associated with the act of generation, the sexual pleasure (libido) is, contrary to the view of St. Augustine (De nuptiis et concup. I 23, 25; 24, 27), neither the cause nor the inescapable condition for the reproduction of original sin. It is only an accompanying phenomenon of the act of generation, which in itself alone is the instrumental cause of the transmission of original sin. Cf. S. th. 1 II 82, 4 ad 3.
The Council of Trent defined that the "concupiscence" is only an accompanying phenomenon which is the instrumental cause of the transmission of original sin.
St.Joachim and St.Anne vow of chastity & purity eliminated "concupiscence" in the procreation act, plus the "Disobedience" of Adam was overcome by St.Joachim by doing the procreative act in "OBEDIENCE TO GOD'S WILL" as shown in the narrative link of the life of St.Joachim and St.Anne.
It's a long beautiful narration highlighted by the visit of St.Gabriel in delivering the message of God to St.Joachim.
St.Anne life accounts on conception
"After God had created Mary’s "immaculate soul", He showed it to the choirs of angels in Heaven, and they felt intense joy upon seeing its unique beauty.
Then, as Mary’s soul was infused into her body, her holy mother St. Ann was filled with the Holy Ghost and experienced an extraordinary devotion and happiness. Throughout the rest of her life and especially during the next nine months, she constantly received new graces and enlightenment concerning the great mystery of the Incarnation, and she frequently praised the Lord in canticles of love.
“O Lord and Creator, with eternal thanks I offer Thee this blessed fruit of my womb which I have received from Thy bounty without any merit of mine. But how shall I be able to treat such a child worthily?”
“The Life of Mary as Seen by the Mystics” compiled by Raphael Brown: An Account of the Nativity of the Blessed Virgin Mary.
We can see that from the conception of St.Anne it overcame the passage from Psalm 50:7 that is the basis of St.Augustine that is proclaimed in the dogma on original sin declared by the Council of Trent.
This beautiful pious life of St.Joachim & St.Anne contributed in producing an offspring well-disposed "immaculate body" to received the gift of "immaculate soul" endowed with singular privelege and many gifts. All of this things are the working of Divine Providence.
As we can see from this introduction of the article"
"At a time much like our own, when the ancient serpent had infected the whole earth with its poisonous breath and apparently enjoyed peaceful control over mortals who had become blind to the light of reason; when the pride of men reigned supreme and fools had become innumerable; when His justice had such an excellent cause for annihilating all of creation and reducing it to its original nothingness; God instead directed His attention to the attribute of His mercy, sending into the world two most bright luminaries to announce the approaching dawn of the Sun of Justice, Christ our Salvation. These were St. Joachim and St. Anne, prepared and created by especial decree according to His own heart. - Saint Joachim (Roman Catholic Saints)
And beuatifully and powerfully concluded by St.Bridget revelation;
The Blessed Virgin Said to St. Bridget of Sweden:
“It is a truth that I was "conceived without Original Sin and not in sin". A golden hour was my conception. My Son joined my father and my mother in a marriage of such "chastity" that a "purer union" has never been seen. Sensuality was extinguished in them. Thus my "flesh" was formed through divine charity.
Note: See closely the wording on St.Bridget revelation "chastity, purer union, and sensuality was extinguished in them" meaning "concupiscence was absent thus an "immaculate flesh" was produce.
(excerpt; The Life of Mary as Seen by the Mystics;Book Author Raphael Brown)
In, closing St.Joachim & St.Anne life of purity and chastity merited God's grace to overcome "concupiscence" of the flesh and by "OBEDIENCE" in following God's Will in doing the "procreation act" which thru Archangel Gabriel delivered messages God's Divine Plan was accomplished.
So back to your question, is "Immaculate Concepcion" necessary?
The answer is, it is necessary primarily because it is the "Divine Will" and the Divine Will govern all things towards the salvation of man.
Sweet Heart of Mary be my salvation.(Pieta Prayer Booklet)