From all these causes weighed together, it follows that Christ's pain was the very greatest.
Reply Obj. 1: This argument follows from only one of the considerations adduced—namely, from the bodily injury, which is the cause of sensitive pain; but the torment of the suffering Christ is much more intensified from other causes, as above stated.
Reply Obj. 2: Moral virtue lessens interior sadness in one way, and outward sensitive pain in quite another; for it lessens interior sadness directly by fixing the mean, as being its proper matter, within limits. But, as was laid down in the Second Part (I-II, Q. 64, A. 2), moral virtue fixes the mean in the passions, not according to mathematical quantity, but according to quantity of proportion, so that the passion shall not go beyond the rule of reason. And since the Stoics held all sadness to be unprofitable, they accordingly believed it to be altogether discordant with reason, and consequently to be shunned altogether by a wise man. But in very truth some sadness is praiseworthy, as Augustine proves (De Civ. Dei xiv)—namely, when it flows from holy love, as, for instance, when a man is saddened over his own or others' sins. Furthermore, it is employed as a useful means of satisfying for sins, according to the saying of the Apostle (2 Cor. 7:10): "The sorrow that is according to God worketh penance, steadfast unto salvation." And so to atone for the sins of all men, Christ accepted sadness, the greatest in absolute quantity, yet not exceeding the rule of reason. But moral virtue does not lessen outward sensitive pain, because such pain is not subject to reason, but follows the nature of the body; yet it lessens it indirectly by redundance of the higher powers into the lower. But this did not happen in Christ's case, as stated above (cf. Q. 14, A. 1, ad 2; Q. 45, A. 2).
Reply Obj. 3: The pain of a suffering, separated soul belongs to the state of future condemnation, which exceeds every evil of this life, just as the glory of the saints surpasses every good of the present life. Accordingly, when we say that Christ's pain was the greatest, we make no comparison between His and the pain of a separated soul. But Adam's body could not suffer, except he sinned; so that he would become mortal, and passible. And, though actually suffering, it would have felt less pain than Christ's body, for the reasons already stated. From all this it is clear that even if Adam had suffered in the state of innocence, [though this was impossible] his pain would have been less than Christ's.
Reply Obj. 4: Christ grieved not only over the loss of His own bodily life, but also over the sins of all others. And this grief in Christ surpassed all grief of every contrite heart, both because it flowed from a greater wisdom and charity, by which the pang of contrition is intensified, and because He grieved at the one time for all sins, according to Isa. 53:4: "Surely He hath carried our sorrows." But such was the dignity of Christ's life in the body, especially on account of the Godhead united with it, that its loss, even for one hour, would be a matter of greater grief than the loss of another man's life for howsoever long a time. Hence the Philosopher says (Ethic. iii) that the man of virtue loves his life all the more in proportion as he knows it to be better; and yet he exposes it for virtue's sake. And in like fashion Christ laid down His most beloved life for the good of charity, according to Jer. 12:7: "I have given My dear soul into the hands of her enemies."
Reply Obj. 5: The sufferer's innocence does lessen numerically the pain of the suffering, since, when a guilty man suffers, he grieves not merely on account of the penalty, but also because of the crime, whereas the innocent man grieves only for the penalty: yet this pain is more intensified by reason of his innocence, in so far as he deems the hurt inflicted to be the more undeserved. Hence it is that even others are more deserving of blame if they do not compassionate him, according to Isa. 57:1: "The just perisheth, and no man layeth it to heart."
Reply Obj. 6: Christ willed to deliver the human race from sins not merely by His power, but also according to justice. And therefore He did not simply weigh what great virtue His suffering would have from union with the Godhead, but also how much, according to His human nature, His pain would avail for so great a satisfaction. _______________________
SEVENTH ARTICLE [III, Q. 46, Art. 7]
Whether Christ Suffered in His Whole Soul?
Objection 1: It would seem that Christ did not suffer in His whole soul. For the soul suffers indirectly when the body suffers, inasmuch as it is the "act of the body." But the soul is not, as to its every part, the "act of the body"; because the intellect is the act of no body, as is said De Anima iii. Therefore it seems that Christ did not suffer in His whole soul.