ARTICLE [III, Q. 30, Art. 1]

Whether It Was Necessary to Announce to the Blessed Virgin That Which
Was to Be Done in Her?

Objection 1: It would seem that it was unnecessary to announce to the
Blessed Virgin that which was to be done in her. For there seems to
have been no need of the Annunciation except for the purpose of
receiving the Virgin's consent. But her consent seems to have been
unnecessary: because the Virginal Conception was foretold by a
prophecy of "predestination," which is "fulfilled without our
consent," as a gloss says on Matt. 1:22. There was no need,
therefore, for this Annunciation.

Obj. 2: Further, the Blessed Virgin believed in the Incarnation, for
to disbelieve therein excludes man from the way of salvation;
because, as the Apostle says (Rom. 3:22): "The justice of God (is) by
faith of Jesus Christ." But one needs no further instruction
concerning what one believes without doubt. Therefore the Blessed
Virgin had no need for the Incarnation of her Son to be announced to
her.

Obj. 3: Further, just as the Blessed Virgin conceived Christ in her
body, so every pious soul conceives Him spiritually. Thus the Apostle
says (Gal. 4:19): "My little children, of whom I am in labor again,
until Christ be formed in you." But to those who conceive Him
spiritually no announcement is made of this conception. Therefore
neither should it have been announced to the Blessed Virgin that she
was to conceive the Son of God in her womb.

_On the contrary,_ It is related (Luke 1:31) that the angel said to
her: "Behold, thou shalt conceive in thy womb, and shalt bring forth
a son."

_I answer that,_ It was reasonable that it should be announced to the
Blessed Virgin that she was to conceive Christ. First, in order to
maintain a becoming order in the union of the Son of God with the
Virgin--namely, that she should be informed in mind concerning Him,
before conceiving Him in the flesh. Thus Augustine says (De Sancta
Virgin. iii): "Mary is more blessed in receiving the faith of Christ,
than in conceiving the flesh of Christ"; and further on he adds: "Her
nearness as a Mother would have been of no profit to Mary, had she
not borne Christ in her heart after a more blessed manner than in her
flesh."

Secondly, that she might be a more certain witness of this mystery,
being instructed therein by God.

Thirdly, that she might offer to God the free gift of her obedience:
which she proved herself right ready to do, sa