Christ
had the fulness of grace sanctifying His body and His soul.

Reply Obj. 1: The order set down by the Apostle in this passage
refers to those who by advancing attain to the spiritual state. But
the mystery of the Incarnation is considered as a condescension of
the fulness of the Godhead into human nature rather than as the
promotion of human nature, already existing, as it were, to the
Godhead. Therefore in the man Christ there was perfection of
spiritual life from the very beginning.

Reply Obj. 2: To be sanctified is to be made holy. Now something is
made not only from its contrary, but also from that which is opposite
to it, either by negation or by privation: thus white is made either
from black or from not-white. We indeed from being sinners are made
holy: so that our sanctification is a cleansing from sin. Whereas
Christ, as man, was made holy, because He was not always thus
sanctified by grace: yet He was not made holy from being a sinner,
because He never sinned; but He was made holy from not-holy as man,
not indeed by privation, as though He were at some time a man and not
holy; but by negation--that is, when He was not man He had not human
sanctity. Therefore at the same time He was made man and a holy man.
For this reason the angel said (Luke 1:35): "The Holy which shall be
born of thee." Which words Gregory expounds as follows (Moral.
xviii): "In order to show the distinction between His holiness and
ours, it is declared that He shall be born holy. For we, though we
are made holy, yet are not born holy, because by the mere condition
of a corruptible nature we are tied . . . But He alone is truly born
holy who . . . was not conceived by the combining of carnal union."

Reply Obj. 3: The Father creates things through the Son, and the
whole Trinity sanctifies men through the Man Christ, but not in the
same way. For the Word of God has the same power and operation as God
the Father: hence the Father does not work through the Son as an
instrument, which is both mover and moved. Whereas the humanity of
Christ is as the instrument of the Godhead, as stated above (Q. 7, A.
1, ad 3; Q. 8, A. 1, ad 1). Therefore Christ's humanity is both
sanctified and sanctifier.
_______________________

SECOND ARTICLE [III, Q. 34, Art. 2]

Whether Christ As Man Had the Use of Free-will in the First Instant
of His Conception?

Objection 1: It would seem that Christ as man had not the use of
free-will in the first insta