(1) Whether Christ was sanctified by grace in the first instant of His conception?
(2) Whether in that same instant He had the use of free-will?
(3) Whether in that same instant He could merit?
(4) Whether in that same instant He was a perfect comprehensor? _______________________
FIRST ARTICLE [III, Q. 34, Art. 1]
Whether Christ Was Sanctified in the First Instant of His Conception?
Objection 1: It would seem that Christ was not sanctified in the first instant of His conception. For it is written (1 Cor. 15:46): "That was not first which is spiritual, but that which is natural: afterwards that which is spiritual." But sanctification by grace is something spiritual. Therefore Christ received the grace of sanctification, not at the very beginning of His conception, but after a space of time.
Obj. 2: Further, sanctification seems to be a cleansing from sin: according to 1 Cor. 6:1: "And such some of you were," namely, sinners, "but you are washed, but you are sanctified." But sin was never in Christ. Therefore it was not becoming that He should be sanctified by grace.
Obj. 3: Further, as by the Word of God "all things were made," so from the Word incarnate all men who are made holy receive holiness, according to Heb. 2:11: "Both he that sanctifieth and they who are sanctified are all of one." But "the Word of God, by whom all things were made, was not Himself made"; as Augustine says (De Trin. i). Therefore Christ, by whom all are made holy, was not Himself made holy.
On the contrary, It is written (Luke 1:35): "The Holy which shall be born of thee shall be called the Son of God"; and (John 10:36): "Whom the Father hath sanctified and sent into the world."