FOURTH ARTICLE [III, Q. 19, Art. 4]

Whether Christ Could Merit for Others?

Objection 1: It would seem that Christ could not merit for others.

For it is written (Ezech. 18:4): "The soul that sinneth, the same

shall die." Hence, for a like reason, the soul that meriteth, the

same shall be recompensed. Therefore it is not possible that Christ

merited for others.

Obj. 2: Further, of the fulness of Christ's grace we all receive, as

is written John 1:16. Now other men having Christ's grace cannot

merit for others. For it is written (Ezech. 14:20) that if "Noe and

Daniel and Job be in the city [Vulg.: 'the midst thereof'] . . . they

shall deliver neither son nor daughter; but they shall only deliver

their own souls by their justice." Hence Christ could not merit

anything for us.

Obj. 3: Further, the "reward" that we merit is due "according to

justice [Vulg.: 'debt'] and not according to grace," as is clear from

Rom. 4:4. Therefore if Christ merited our salvation it follows that

our salvation is not by God's grace but by justice, and that He acts

unjustly with those whom He does not save, since Christ's merit

extends to all.

_On the contrary,_ It is written (Rom. 5:18): "As by the offense of

one, unto all men to condemnation; so also by the justice of one,

unto all men to justification of life." But Adam's demerits reached

to the condemnation of others. Much more, therefore, does the merit

of Christ reach others.

_I answer that,_ As stated above (Q. 8, AA. 1, 5), grace was in

Christ not merely as in an individual, but also as in the Head of the

whole Church, to Whom all are united, as members to a head, who

constitute one mystical person. And hence it is that Christ's merit

extends to others inasmuch as they are His members; even as in a man

the action of the head reaches in a manner to all his members, since

it perceives not merely for itself alone, but for all the members.

Reply Obj. 1: The sin of an individual harms himself alone; but the

sin of Adam, who was appointed by God to be the principle of the

whole nature, is transmitted to others by carnal propagation. So,

too, the merit of Christ, Who has been appointed by God to be the

head of all men in regard to grace, extends to all His members.

Reply Obj. 2: Others receive of Christ's fulness not indeed the fount

of grace, but some particular grace. And hence it need not be that

men merit for others, as Christ did.

Reply Obj. 3: As the sin of Adam reaches others only by carnal

generation, so, too, the merit of Christ reaches others only by

spiritual regeneration, which takes place in baptism; wherein we are

incorporated with Christ, according to Gal. 3:27, "As many of you as

have been baptized in Christ, have put on Christ"; and it is by grace

that it is granted to man to be incorporated with Christ. And thus

man's salvation is from grace.

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Summa Theologica, Part III (Tertia Pars) From the Complete American Edition · 第 151 / 654 题