FOURTH ARTICLE [III, Q. 77, Art. 4]

Whether the Sacramental Species Can Be Corrupted?

Objection 1: It seems that the sacramental species cannot be

corrupted, because corruption comes of the separation of the form

from the matter. But the matter of the bread does not remain in this

sacrament, as is clear from what was said above (Q. 75, A. 2).

Therefore these species cannot be corrupted.

Obj. 2: Further, no form is corrupted except accidentally, that is,

when its subject is corrupted; hence self-subsisting forms are

incorruptible, as is seen in spiritual substances. But the

sacramental species are forms without a subject. Therefore they

cannot be corrupted.

Obj. 3: Further, if they be corrupted, it will either be naturally or

miraculously. But they cannot be corrupted naturally, because no

subject of corruption can be assigned as remaining after the

corruption has taken place. Neither can they be corrupted

miraculously, because the miracles which occur in this sacrament take

place in virtue of the consecration, whereby the sacramental species

are preserved: and the same thing is not the cause of preservation

and of corruption. Therefore, in no way can the sacramental species

be corrupted.

_On the contrary,_ We perceive by our senses that the consecrated

hosts become putrefied and corrupted.

_I answer that,_ Corruption is "movement from being into non-being"

(Aristotle, _Phys._ v). Now it has been stated (A. 3) that the

sacramental species retain the same being as they had before when the

substance of the bread was present. Consequently, as the being of

those accidents could be corrupted while the substance of the bread

and wine was present, so likewise they can be corrupted now that the

substance has passed away.

But such accidents could have been previously corrupted in two ways:

in one way, of themselves; in another way, accidentally. They could

be corrupted of themselves, as by alteration of the qualities, and

increase or decrease of the quantity, not in the way in which

increase or decrease is found only in animated bodies, such as the

substances of the bread and wine are not, but by addition or

division; for, as is said in _Metaph._ iii, one dimension is

dissolved by division, and two dimensions result; while on the

contrary, by addition, two dimensions become one. And in this way

such accidents can be corrupted manifestly after consecration,

because the dimensive quantity which remains can receive division and

addition; and since it is the subject of sensible qualities, as

stated above (A. 1), it can likewise be the subject of their

alteration, for instance, if the color or the savor of the bread or

wine be altered.

An accident can be corrupted in another way, through the corruption

of its subject, and in this way also they can be corrupted after

consecration; for although the subject does not remain, still the

being which they had in the subject does remain, which being is

proper, and suited to the subject. And therefore such being can be

corrupted by a contrary agent, as the substance of the bread or wine

was subject to corruption, and, moreover, was not corrupted except by

a preceding alteration regarding the accidents.

Nevertheless, a distinction must be made between each of the aforesaid

corruptions; because, when the body and the blood of Christ succeed in

this sacrament to the substance of the bread and wine, if there be

such change on the part of the accidents as would not have sufficed

for the corruption of the bread and wine, then the body and blood of

Christ do not cease to be under this sacrament on account of such

change, whether the change be on the part of the quality, as for

instance, when the color or the savor of the bread or wine is slightly

modified; or on the part of the quantity, as when the bread or the

wine is divided into such parts as to keep in them the nature of bread

or of wine. But if the change be so great that the substance of the

bread or wine would have been corrupted, then Christ's body and blood

do not remain under this sacrament; and this either on the part of the

qualities, as when the color, savor, and other qualities of the bread

and wine are so altered as to be incompatible with the nature of bread

or of wine; or else on the part of the quantity, as, for instance, if

the bread be reduced to fine particles, or the wine divided into such

tiny drops that the species of bread or wine no longer remain.

Reply Obj. 1: Since it belongs essentially to corruption to take away

the being of a thing, in so far as the being of some form is in

matter, it results that by corruption the form is separated from the

matter. But if such being were not in matter, yet like such being as

is in matter, it could be taken away by corruption, even where there

is no matter; as takes place in this sacrament, as is evident from

what was said above.

Reply Obj. 2: Although the sacramental species are forms not in

matter, yet they have the being which they had in matter.

Reply Obj. 3: This corruption of species is not miraculous, but

natural; nevertheless, it presupposes the miracle which is wrought in

the consecration, namely, that those sacramental species retain

without a subject, the same being as they had in a subject; just as a

blind man, to whom sight is given miraculously, sees naturally.

_______________________

Summa Theologica, Part III (Tertia Pars) From the Complete American Edition · 第 551 / 654 题