However, some writers have contended that Christ was a man during those three days, uttering words which are indeed erroneous, yet without intent of error in faith: as Hugh of Saint Victor, who (De Sacram. ii) contended that Christ, during the three days that followed His death, was a man, because he held that the soul is a man: but this is false, as was shown in the First Part (I, Q. 75, A. 4). Likewise the Master of the Sentences (iii, D, 22) held Christ to be a man during the three days of His death for quite another reason. For he believed the union of soul and flesh not to be essential to a man, and that for anything to be a man it suffices if it have a soul and body, whether united or separated: and that this is likewise false is clear both from what has been said in the First Part (I, Q. 75, A. 4), and from what has been said above regarding the mode of union (Q. 2, A. 5).
Reply Obj. 1: The Word of God assumed a united soul and body: and the result of this assumption was that God is man, and man is God. But this assumption did not cease by the separation of the Word from the soul or from the flesh; yet the union of soul and flesh ceased.
Reply Obj. 2: Man is said to be his own intellect, not because the intellect is the entire man, but because the intellect is the chief part of man, in which man's whole disposition lies virtually; just as the ruler of the city may be called the whole city, since its entire disposal is vested in him.
Reply Obj. 3: That a man is competent to be a priest is by reason of the soul, which is the subject of the character of order: hence a man does not lose his priestly order by death, and much less does Christ, who is the fount of the entire priesthood. _______________________
FIFTH ARTICLE [III, Q. 50, Art. 5]
Whether Christ's Was Identically the Same Body Living and Dead?
Objection 1: It would seem that Christ's was not identically the same body living and dead. For Christ truly died just as other men do. But the body of everyone else is not simply identically the same, dead and living, because there is an essential difference between them. Therefore neither is the body of Christ identically the same, dead and living.
Obj. 2: Further, according to the Philosopher (Metaph. v, text. 12), things specifically diverse are also numerically diverse. But Christ's body, living and dead, was specifically diverse: because the eye or flesh of the dead is only called so equivocally, as is evident from the Philosopher (De Anima ii, text. 9; Metaph. vii). Therefore Christ's body was not simply identically the same, living and dead.
Obj. 3: Further, death is a kind of corruption. But what is corrupted by substantial corruption after being corrupted, exists no longer, since corruption is change from being to non-being. Therefore, Christ's body, after it was dead, did not remain identically the same, because death is a substantial corruption.
On the contrary, Athanasius says (Epist. ad Epict.): "In that body which was circumcised and carried, which ate, and toiled, and was nailed on the tree, there was the impassible and incorporeal Word of God: the same was laid in the tomb." But Christ's living body was circumcised and nailed on the tree; and Christ's dead body was laid in the tomb. Therefore it was the same body living and dead.