susanlo-
Here are a few more quotes from ECF’s BEFORE Augustine regarding the Immaculate Conception and, as an added bonus, notice how many of them speak of Mary as “virgin” - not merely because she was a virgin at the time that Jesus was conceived but because she remained a virgin all of her life…a point that even the earliest Protestant Reformers such as Luther and Calvin defended.
Early Church Fathers on the Immaculate Conception
Justin Martyr
[Jesus] became man by the Virgin so that the course that 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) (Dialogue with Trypho 100 [A.D. 155]).
St. Irenaeus (180 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… 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 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.” (Against the Heresies, Book III [A.D. 180]).
St. Irenaeus uses “virginity” as a sign of sinlessness (i.e. Mary was sinless just as Eve was sinless before the Fall).
Hippolytus
He [Jesus] was the ark formed of incorruptible wood. For by this is signified that His tabernacle [Mary] was exempt from defilement and corruption (Orat. In Illud, Dominus pascit me, in Gallandi, Bibl. Patrum, II, 496 ante [A.D. 235]).
Origen
This Virgin Mother of the Only-begotten of God is called Mary, worthy of God, immaculate of the immaculate, one of the one (Homily 1 [A.D. 244]).
St. Ambrose of Milan (340-397)
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 Sara but from Mary, a Virgin not only undefiled but a Virgin whom grace has made inviolate, free from every stain of sin (ut incorrupta sit virgo, sed virgo per gratium ab omni integra labe peccati)." (Commentary on Psalm 118, 22-30, 387 A.D.)
St. Ephraim the Syrian (ca. 350)
You alone and your Mother are more beautiful than any others, for there is neither blemish in you nor any stains upon your Mother. Who of my children can compare in beauty to these? (Nisibene Hymns 27:8 [A. D. 361]).
“My Lady Most Holy, All-Pure, All-Immaculate, All-Stainless, All-Undefiled, All-Incorrupt, All-Inviolate …Spotless Robe of Him Who clothes Himself with light as with a garment …Flower unfading, purple woven by God, alone Most Immaculate.” (ibid.)
Gregory Nazianzen
He was conceived by the virgin, who had been first purified by the Spirit in soul and body; for, as it was fitting that childbearing should receive its share of honor, so it was necessary that virginity should receive even greater honor (Sermon 38 [d. A.D. 390]).
Finally, have you observed how careful Augustine is to tread lightly around the subject of Mary’s sinlessness? Has it occurred to you that this is evidence of the fact that it was widely believed that Mary was without sin PRIOR to the time that Augustine wrote and that this suggests that the belief was held much earlier than you seem to allow?