condensation of the atmosphere took place. Fourthly, because the same thing can happen to the solid bodies surrounding them, such as iron or stone, which remain entire after the generation of the aforesaid things. Hence this opinion cannot stand, because it is opposed to what is manifest to our senses.
And therefore others have said that the substance of the bread and wine returns during the corruption of the species, and so from the returning substance of the bread and wine, ashes or worms or something of the kind are generated. But this explanation seems an impossible one. First of all, because if the substance of the bread and wine be converted into the body and blood of Christ, as was shown above (Q. 75, AA. 2, 4), the substance of the bread and wine cannot return, except the body and blood of Christ be again changed back into the substance of bread and wine, which is impossible: thus if air be turned into fire, the air cannot return without the fire being again changed into air. But if the substance of bread or wine be annihilated, it cannot return again, because what lapses into nothing does not return numerically the same. Unless perchance it be said that the said substance returns, because God creates anew another new substance to replace the first. Secondly, this seems to be impossible, because no time can be assigned when the substance of the bread returns. For, from what was said above (A. 4; Q. 76, A. 6, ad 3), it is evident that while the species of the bread and wine remain, there remain also the body and blood of Christ, which are not present together with the substance of the bread and wine in this sacrament, according to what was stated above (Q. 75, A. 2). Hence the substance of the bread and wine cannot return while the sacramental species remain; nor, again, when these species pass away; because then the substance of the bread and wine would be without their proper accidents, which is impossible. Unless perchance it be said that in the last instant of the corruption of the species there returns (not, indeed, the substance of bread and wine, because it is in that very instant that they have the being of the substance generated from the species, but) the matter of the bread and wine; which, matter, properly speaking, would be more correctly described as created anew, than as returning. And in this sense the aforesaid position might be held.
However, since it does not seem reasonable to say that anything takes place miraculously in this sacrament, except in virtue of the consecration itself, which does not imply either creation or return of matter, it seems better to say that in the actual consecration it is miraculously bestowed on the dimensive quantity of the bread and wine to be the subject of subsequent forms. Now this is proper to matter; and therefore as a consequence everything which goes with matter is bestowed on dimensive quantity; and therefore everything which could be generated from the matter of bread or wine, if it were present, can be generated from the aforesaid dimensive quantity of the bread or wine, not, indeed, by a new miracle, but by virtue of the miracle which has already taken place.
Reply Obj. 1: Although no matter is there out of which a thing may be generated, nevertheless dimensive quantity supplies the place of matter, as stated above.
Reply Obj. 2: Those sacramental species are indeed accidents, yet they have the act and power of substance, as stated above (A. 3).
Reply Obj. 3: The dimensive quantity of the bread and wine retains its own nature, and receives miraculously the power and property of substance; and therefore it can pass to both, that is, into substance and dimension.
SIXTH ARTICLE [III, Q. 77, Art. 6] Whether the Sacramental Species Can Nourish?
Objection 1: It seems that the sacramental species cannot nourish, because, as Ambrose says (De Sacram. v), "it is not this bread that enters into our body, but the bread of everlasting life, which supports the substance of our soul." But whatever nourishes enters into the body. Therefore this bread does not nourish: and the same reason holds good of the wine.
Obj. 2: Further, as is said in De Gener. ii, "We are nourished by the very things of which we are made." But the sacramental species are accidents, whereas man is not made of accidents, because accident is not a part of substance. Therefore it seems that the sacramental species cannot nourish.
Obj. 3: Further, the Philosopher says (De Anima ii) that "food nourishes according as it is a substance, but it gives increase by reason of its quantity." But the sacramental species are not a substance. Consequently they cannot nourish.
_On the contrary,_ The Apostle speaking of this sacrament says (1 Cor. 11:21): "One, indeed, is hungry, and another is drunk": upon which the gloss observes that "he alludes to those who after the celebration of the sacred mystery, and after the consecration of the bread and wine, claimed their oblations, and not sharing them with others, took the whole, so as even to become intoxicated thereby."
But this could not happen if the sacramental species did not nourish.
Therefore the sacramental species do nourish.
_I answer that,_ This question presents no difficulty, now that we have solved the preceding question. Because, as stated in _De Anima_ ii, food nourishes by being converted into the substance of the individual nourished. Now it has been stated (A. 5) that the sacramental species can be converted into a substance generated from them. And they can be converted into the human body for the same reason as they can into ashes or worms. Consequently, it is evident that they nourish.
But the senses witness to the untruth of what some maintain; viz.
that the species do not nourish as though they were changed into the human body, but merely refresh and hearten by acting upon the senses (as a man is heartened by the odor of meat, and intoxicated by the fumes of wine). Because such refreshment does not suffice long for a man, whose body needs repair owing to constant waste: and yet a man could be supported for long if he were to take hosts and consecrated wine in great quantity.
In like manner the statement advanced by others cannot stand, who hold that the sacramental species nourish owing to the remaining substantial form of the bread and wine: both because the form does not remain, as stated above (Q. 75, A. 6): and because to nourish is the act not of a form but rather of matter, which takes the form of the one nourished, while the form of the nourishment passes away: hence it is said in _De Anima_ ii that nourishment is at first unlike, but at the end is like.
Reply Obj. 1: After the consecration bread can be said to be in this sacrament in two ways. First, as to the species, which retain the name of the previous substance, as Gregory says in an Easter Homily (Lanfranc, De Corp. et Sang. Dom. xx). Secondly, Christ's very body can be called bread, since it is the mystical bread "coming down from heaven." Consequently, Ambrose uses the word "bread" in this second meaning, when he says that "this bread does not pass into the body," because, to wit, Christ's body is not changed into man's body, but nourishes his soul. But he is not speaking of bread taken in the first acceptation.
Reply Obj. 2: Although the sacramental species are not those things out of which the human body is made, yet they are changed into those things stated above.
Reply Obj. 3: Although the sacramental species are not a substance, still they have the virtue of a substance, as stated above.
SEVENTH ARTICLE [III, Q. 77, Art. 7] Whether the Sacramental Species Are Broken in This Sacrament?
Objection 1: It seems that the sacramental species are not broken in this sacrament, because the Philosopher says in Meteor. iv that bodies are breakable owing to a certain disposition of the pores; a thing which cannot be attributed to the sacramental species.
Therefore the sacramental species cannot be broken.
Obj. 2: Further, breaking is followed by sound. But the sacramental species emit no sound: because the Philosopher says (De Anima ii), that what emits sound is a hard body, having a smooth surface.
Therefore the sacramental species are not broken.
Obj. 3: Further, breaking and mastication are seemingly of the same object. But it is Christ's true body that is eaten, according to John 6:57: "He that eateth My flesh, and drinketh My blood." Therefore it is Christ's body that is broken and masticated: and hence it is said in the confession of Berengarius: "I agree with the Holy Catholic Church, and with heart and lips I profess, that the bread and wine which are placed on the altar, are the true body and blood of Christ after consecration, and are truly handled and broken by the priest's hands, broken and crushed by the teeth of believers." Consequently, the breaking ought not to be ascribed to the sacramental species.
_On the contrary,_ Breaking arises from the division of that which has quantity. But nothing having quantity except the sacramental species is broken here, because neither Christ's body is broken, as being incorruptible, nor is the substance of the bread, because it no longer remains. Therefore the sacramental species are broken.
_I answer that,_ Many opinions prevailed of old on this matter. Some held that in this sacrament there was no breaking at all in reality, but merely in the eyes of the beholders. But this contention cannot stand, because in this sacrament of truth the sense is not deceived with regard to its proper object of judgment, and one of these objects is breaking, whereby from one thing arise many: and these are common sensibles, as is stated in _De Anima_ ii.
Others accordingly have said that there was indeed a genuine breaking, but without any subject. But this again contradicts our senses; because a quantitative body is seen in this sacrament, which formerly was one, and is now divided into many, and this must be the subject of the breaking.
But it cannot be said that Christ's true body is broken. First of all, because it is incorruptible and impassible: secondly, because it is entire under every part, as was shown above (Q. 76, A. 3), which is contrary to the nature of a thing broken.
It remains, then, that the breaking is in the dimensive quantity of the bread, as in a subject, just as the other accidents. And as the sacramental species are the sacrament of Christ's true body, so is the breaking of these species the sacrament of our Lord's Passion, which was in Christ's true body.
Reply Obj. 1: As rarity and density remain under the sacramental species, as stated above (A. 2, ad 3), so likewise porousness remains, and in consequence breakableness.
Reply Obj. 2: Hardness results from density; therefore, as density remains under the sacramental species, hardness remains there too, and the capability of sound as a consequence.
Reply Obj. 3: What is eaten under its own species, is also broken and masticated under its own species; but Christ's body is eaten not under its proper, but under the sacramental species. Hence in explaining John 6:64, "The flesh profiteth nothing," Augustine (Tract. xxvii in Joan.) says that this is to be taken as referring to those who understood carnally: "for they understood the flesh, thus, as it is divided piecemeal, in a dead body, or as sold in the shambles." Consequently, Christ's very body is not broken, except according to its sacramental species. And the confession made by Berengarius is to be understood in this sense, that the breaking and the crushing with the teeth is to be referred to the sacramental species, under which the body of Christ truly is.
EIGHTH ARTICLE [III, Q. 77, Art. 8] Whether Any Liquid Can Be Mingled with the Consecrated Wine?
Objection 1: It seems that no liquid can be mingled with the consecrated wine, because everything mingled with another partakes of its quality. But no liquid can share in the quality of the sacramental species, because those accidents are without a subject, as stated above (A. 1). Therefore it seems that no liquid can be mingled with the sacramental species of the wine.
Obj. 2: Further, if any kind of liquid be mixed with those species, then some one thing must be the result. But no one thing can result from the liquid, which is a substance, and the sacramental species, which are accidents; nor from the liquid and Christ's blood, which owing to its incorruptibility suffers neither increase nor decrease.
Therefore no liquid can be mixed with the consecrated wine.
Obj. 3: Further, if any liquid be mixed with the consecrated wine, then that also would appear to be consecrated; just as water added to holy-water becomes holy. But the consecrated wine is truly Christ's blood. Therefore the liquid added would likewise be Christ's blood otherwise than by consecration, which is unbecoming. Therefore no liquid can be mingled with the consecrated wine.
Obj. 4: Further, if one of two things be entirely corrupted, there is no mixture (De Gener. i). But if we mix any liquid, it seems that the entire species of the sacramental wine is corrupted, so that the blood of Christ ceases to be beneath it; both because great and little are difference of quantity, and alter it, as white and black cause a difference of color; and because the liquid mixed, as having no obstacle, seems to permeate the whole, and so Christ's blood ceases to be there, since it is not there with any other substance.
Consequently, no liquid can be mixed with the consecrated wine.
_On the contrary,_ It is evident to our senses that another liquid can be mixed with the wine after it is consecrated, just as before.
_I answer that,_ The truth of this question is evident from what has been said already. For it was said above (A. 3; A. 5, ad 2) that the species remaining in this sacrament, as they acquire the manner of being of substance in virtue of the consecration, so likewise do they obtain the mode of acting and of being acted upon, so that they can do or receive whatever their substance could do or receive, were it there present. But it is evident that if the substance of wine were there present, then some other liquid could be mingled with it.
Nevertheless there would be a different effect of such mixing both according to the form and according to the quantity of the liquid.
For if sufficient liquid were mixed so as to spread itself all through the wine, then the whole would be a mixed substance. Now what is made up of things mixed is neither of them, but each passes into a third resulting from both: hence it would result that the former wine would remain no longer. But if the liquid added were of another species, for instance, if water were mixed, the species of the wine would be dissolved, and there would be a liquid of another species.
But if liquid of the same species were added, of instance, wine with wine, the same species would remain, but the wine would not be the same numerically, as the diversity of the accidents shows: for instance, if one wine were white and the other red.
But if the liquid added were of such minute quantity that it could not permeate the whole, the entire wine would not be mixed, but only part of it, which would not remain the same numerically owing to the blending of extraneous matter: still it would remain the same specifically, not only if a little liquid of the same species were mixed with it, but even if it were of another species, since a drop of water blended with much wine passes into the species of wine (De Gener. i).
Now it is evident that the body and blood of Christ abide in this sacrament so long as the species remain numerically the same, as stated above (A. 4; Q. 76, A. 6, ad 3); because it is this bread and this wine which is consecrated. Hence, if the liquid of any kind whatsoever added be so much in quantity as to permeate the whole of the consecrated wine, and be mixed with it throughout, the result would be something numerically distinct, and the blood of Christ will remain there no longer. But if the quantity of the liquid added be so slight as not to permeate throughout, but to reach only a part of the species, Christ's blood will cease to be under that part of the consecrated wine, yet will remain under the rest.
Reply Obj. 1: Pope Innocent III in a Decretal writes thus: "The very accidents appear to affect the wine that is added, because, if water is added, it takes the savor of the wine. The result is, then, that the accidents change the subject, just as subject changes accidents; for nature yields to miracle, and power works beyond custom." But this must not be understood as if the same identical accident, which was in the wine previous to consecration, is afterwards in the wine that is added; but such change is the result of action; because the remaining accidents of the wine retain the action of substance, as stated above, and so they act upon the liquid added, by changing it.
Reply Obj. 2: The liquid added to the consecrated wine is in no way mixed with the substance of Christ's blood. Nevertheless it is mixed with the sacramental species, yet so that after such mixing the aforesaid species are corrupted entirely or in part, after the way mentioned above (A. 5), whereby something can be generated from those species. And if they be entirely corrupted, there remains no further question, because the whole will be uniform. But if they be corrupted in part, there will be one dimension according to the continuity of quantity, but not one according to the mode of being, because one part thereof will be without a subject while the other is in a subject; as in a body that is made up of two metals, there will be one body quantitatively, but not one as to the species of the matter.
Reply Obj. 3: As Pope Innocent says in the aforesaid Decretal, "if after the consecration other wine be put in the chalice, it is not changed into the blood, nor is it mingled with the blood, but, mixed with the accidents of the previous wine, it is diffused throughout the body which underlies them, yet without wetting what surrounds it." Now this is to be understood when there is not sufficient mixing of extraneous liquid to cause the blood of Christ to cease to be under the whole; because a thing is said to be "diffused throughout," not because it touches the body of Christ according to its proper dimensions, but according to the sacramental dimensions, under which it is contained. Now it is not the same with holy water, because the blessing works no change in the substance of the water, as the consecration of the wine does.
Reply Obj. 4: Some have held that however slight be the mixing of extraneous liquid, the substance of Christ's blood ceases to be under the whole, and for the reason given above (Obj. 4); which, however, is not a cogent one; because "more" or "less" diversify dimensive quantity, not as to its essence, but as to the determination of its measure. In like manner the liquid added can be so small as on that account to be hindered from permeating the whole, and not simply by the dimensions; which, although they are present without a subject, still they are opposed to another liquid, just as substance would be if it were present, according to what was said at the beginning of the article.
QUESTION 78 OF THE FORM OF THIS SACRAMENT (In Six Articles) We must now consider the form of this sacrament; concerning which there are six points of inquiry: (1) What is the form of this sacrament?
(2) Whether the form for the consecration of the bread is appropriate?
(3) Whether the form for the consecration of the blood is appropriate?
(4) Of the power of each form?
(5) Of the truth of the expression?
(6) Of the comparison of the one form with the other?
FIRST ARTICLE [III, Q. 78, Art. 1] Whether This Is the Form of This Sacrament: "This Is My Body," and "This Is the Chalice of My Blood"?
Objection 1: It seems that this is not the form of this sacrament: "This is My body," and, "This is the chalice of My blood." Because those words seem to belong to the form of this sacrament, wherewith Christ consecrated His body and blood. But Christ first blessed the bread which He took, and said afterwards: "Take ye and eat; this is My body" (Matt. 26:26). Therefore the whole of this seems to belong to the form of this sacrament: and the same reason holds good of the words which go with the consecration of the blood.
Obj. 2: Further, Eusebius Emissenus (Pseudo-Hieron: Ep. xxix; Pseudo-Isid.: Hom. iv) says: "The invisible Priest changes visible creatures into His own body, saying: 'Take ye and eat; this is My body.'" Therefore, the whole of this seems to belong to the form of this sacrament: and the same hold good of the works appertaining to the blood.
Obj. 3: Further, in the form of Baptism both the minister and his act are expressed, when it is said, "I baptize thee." But in the words set forth above there is no mention made either of the minister or of his act. Therefore the form of the sacrament is not a suitable one.
Obj. 4: Further, the form of the sacrament suffices for its perfection; hence the sacrament of Baptism can be performed sometimes by pronouncing the words of the form only, omitting all the others.
Therefore, if the aforesaid words be the form of this sacrament, it would seem as if this sacrament could be performed sometimes by uttering those words alone, while leaving out all the others which are said in the mass; yet this seems to be false, because, were the other words to be passed over, the said words would be taken as spoken in the person of the priest saying them, whereas the bread and wine are not changed into his body and blood. Consequently, the aforesaid words are not the form of this sacrament.
_On the contrary,_ Ambrose says (De Sacram. iv): "The consecration is accomplished by the words and expressions of the Lord Jesus. Because, by all the other words spoken, praise is rendered to God, prayer is put up for the people, for kings, and others; but when the time comes for perfecting the sacrament, the priest uses no longer his own words, but the words of Christ. Therefore, it is Christ's words that perfect this sacrament."
_I answer that,_ This sacrament differs from the other sacraments in two respects. First of all, in this, that this sacrament is accomplished by the consecration of the matter, while the rest are perfected in the use of the consecrated matter. Secondly, because in the other sacraments the consecration of the matter consists only in a blessing, from which the matter consecrated derives instrumentally a spiritual power, which through the priest who is an animated instrument, can pass on to inanimate instruments. But in this sacrament the consecration of the matter consists in the miraculous change of the substance, which can only be done by God; hence the minister in performing this sacrament has no other act save the pronouncing of the words. And because the form should suit the thing, therefore the form of this sacrament differs from the forms of the other sacraments in two respects. First, because the form of the other sacraments implies the use of the matter, as for instance, baptizing, or signing; but the form of this sacrament implies merely the consecration of the matter, which consists in transubstantiation, as when it is said, "This is My body," or, "This is the chalice of My blood." Secondly, because the forms of the other sacraments are pronounced in the person of the minister, whether by way of exercising an act, as when it is said, "I baptize thee," or "I confirm thee," etc.; or by way of command, as when it is said in the sacrament of order, "Take the power," etc.; or by way of entreaty, as when in the sacrament of Extreme Unction it is said, "By this anointing and our intercession," etc. But the form of this sacrament is pronounced as if Christ were speaking in person, so that it is given to be understood that the minister does nothing in perfecting this sacrament, except to pronounce the words of Christ.
Reply Obj. 1: There are many opinions on this matter. Some have said that Christ, Who had power of excellence in the sacraments, performed this sacrament without using any form of words, and that afterwards He pronounced the words under which others were to consecrate thereafter. And the words of Pope Innocent III seem to convey the same sense (De Sacr. Alt. Myst. iv), where he says: "In good sooth it can be said that Christ accomplished this sacrament by His Divine power, and subsequently expressed the form under which those who came after were to consecrate." But in opposition to this view are the words of the Gospel in which it is said that Christ "blessed," and this blessing was effected by certain words. Accordingly those words of Innocent are to be considered as expressing an opinion, rather than determining the point.
Others, again, have said that the blessing was effected by other words not known to us. But this statement cannot stand, because the blessing of the consecration is now performed by reciting the things which were then accomplished; hence, if the consecration was not performed then by these words, neither would it be now.
Accordingly, others have maintained that this blessing was effected by the same words as are used now; but that Christ spoke them twice, at first secretly, in order to consecrate, and afterwards openly, to instruct others. But even this will not hold good, because the priest in consecrating uses these words, not as spoken in secret, but as openly pronounced. Accordingly, since these words have no power except from Christ pronouncing them, it seems that Christ also consecrated by pronouncing them openly.
And therefore others said that the Evangelists did not always follow the precise order in their narrative as that in which things actually happened, as is seen from Augustine (De Consens. Evang. ii). Hence it is to be understood that the order of what took place can be expressed thus: "Taking the bread He blessed it, saying: This is My body, and then He broke it, and gave it to His disciples." But the same sense can be had even without changing the words of the Gospel; because the participle "saying" implies sequence of the words uttered with what goes before. And it is not necessary for the sequence to be understood only with respect to the last word spoken, as if Christ had just then pronounced those words, when He gave it to His disciples; but the sequence can be understood with regard to all that had gone before; so that the sense is: "While He was blessing, and breaking, and giving it to His disciples, He spoke the words, 'Take ye,'" etc.
Reply Obj. 2: In these words, "Take ye and eat," the use of the consecrated, matter is indicated, which is not of the necessity of this sacrament, as stated above (Q. 74, A. 7). And therefore not even these words belong to the substance of the form. Nevertheless, because the use of the consecrated matter belongs to a certain perfection of the sacrament, in the same way as operation is not the first but the second perfection of a thing, consequently, the whole perfection of this sacrament is expressed by all those words: and it was in this way that Eusebius understood that the sacrament was accomplished by those words, as to its first and second perfection.
Reply Obj. 3: In the sacrament of Baptism the minister exercises an act regarding the use of the matter, which is of the essence of the sacrament: such is not the case in this sacrament; hence there is no parallel.
Reply Obj. 4: Some have contended that this sacrament cannot be accomplished by uttering the aforesaid words, while leaving out the rest, especially the words in the Canon of the Mass. But that this is false can be seen both from Ambrose's words quoted above, as well as from the fact that the Canon of the Mass is not the same in all places or times, but various portions have been introduced by various people.
Accordingly it must be held that if the priest were to pronounce only the aforesaid words with the intention of consecrating this sacrament, this sacrament would be valid because the intention would cause these words to be understood as spoken in the person of Christ, even though the words were pronounced without those that precede. The priest, however, would sin gravely in consecrating the sacrament thus, as he would not be observing the rite of the Church. Nor does the comparison with Baptism prove anything; for it is a sacrament of necessity: whereas the lack of this sacrament can be supplied by the spiritual partaking thereof, as Augustine says (cf. Q. 73, A. 3, ad 1).
SECOND ARTICLE [III, Q. 78, Art. 2] Whether This Is the Proper Form for the Consecration of the Bread: "This Is My Body"?
Objection 1: It seems that this is not the proper form of this sacrament: "This is My body." For the effect of a sacrament ought to be expressed in its form. But the effect of the consecration of the bread is the change of the substance of the bread into the body of Christ, and this is better expressed by the word "becomes" than by "is." Therefore, in the form of the consecration we ought to say: "This becomes My body."
Obj. 2: Further, Ambrose says (De Sacram. iv), "Christ's words consecrate this sacrament. What word of Christ? This word, whereby all things are made. The Lord commanded, and the heavens and earth were made." Therefore, it would be a more proper form of this sacrament if the imperative mood were employed, so as to say: "Be this My body."
Obj. 3: Further, that which is changed is implied in the subject of this phrase, just as the term of the change is implied in the predicate. But just as that into which the change is made is something determinate, for the change is into nothing else but the body of Christ, so also that which is converted is determinate, since only bread is converted into the body of Christ. Therefore, as a noun is inserted on the part of the predicate, so also should a noun be inserted in the subject, so that it be said: "This bread is My body."
Obj. 4: Further, just as the term of the change is determinate in nature, because it is a body, so also is it determinate in person.
Consequently, in order to determine the person, it ought to be said: "This is the body of Christ."
Obj. 5: Further, nothing ought to be inserted in the form except what is substantial to it. Consequently, the conjunction "for" is improperly added in some books, since it does not belong to the substance of the form.
_On the contrary,_ our Lord used this form in consecrating, as is evident from Matt. 26:26.
_I answer that,_ This is the proper form for the consecration of the bread. For it was said (A. 1) that this consecration consists in changing the substance of bread into the body of Christ. Now the form of a sacrament ought to denote what is done in the sacrament.
Consequently the form for the consecration of the bread ought to signify the actual conversion of the bread into the body of Christ.
And herein are three things to be considered: namely, the actual conversion, the term _whence,_ and the term _whereunto._ Now the conversion can be considered in two ways: first, in _becoming,_ secondly, in _being._ But the conversion ought not to be signified in this form as in _becoming,_ but as in _being._ First, because such conversion is not successive, as was said above (Q. 75, A. 7), but instantaneous; and in such changes the _becoming_ is nothing else than the _being._ Secondly, because the sacramental forms bear the same relation to the signification of the sacramental effect as artificial forms to the representation of the effect of art. Now an artificial form is the likeness of the ultimate effect, on which the artist's intention is fixed; just as the art-form in the builder's mind is principally the form of the house constructed, and secondarily of the constructing. Accordingly, in this form also the conversion ought to be expressed as in _being,_ to which the intention is referred.
And since the conversion is expressed in this form as in _being,_ it is necessary for the extremes of the conversion to be signified as they exist in the fact of conversion. But then the term _whereunto_ has the proper nature of its own substance; whereas the term _whence_ does not remain in its own substance, but only as to the accidents whereby it comes under the senses, and can be determined in relation to the senses. Hence the term _whence_ of the conversion is conveniently expressed by the demonstrative pronoun, relative to the sensible accidents which continue; but the term _whereunto_ is expressed by the noun signifying the nature of the thing which terminates the conversion, and this is Christ's entire body, and not merely His flesh; as was said above (Q. 76, A. 1, ad 2). Hence this form is most appropriate: "This is My body."
Reply Obj. 1: The ultimate effect of this conversion is not a _becoming_ but a _being,_ as stated above, and consequently prominence should be given to this in the form.
Reply Obj. 2: God's word operated in the creation of things, and it is the same which operates in this consecration, yet each in different fashion: because here it operates effectively and sacramentally, that is, in virtue of its signification. And consequently the last effect of the consecration must needs be signified in this sentence by a substantive verb of the indicative mood and present time. But in the creation of things it worked merely effectively, and such efficiency is due to the command of His wisdom; and therefore in the creation of things the Lord's word is expressed by a verb in the imperative mood, as in Gen. 1:3: "Let there be light, and light was made."
Reply Obj. 3: The term _whence_ does not retain the nature of its substance in the _being_ of the conversion, as the term _whereunto_ does. Therefore there is no parallel.
Reply Obj. 4: The pronoun "My," which implicitly points to the chief person, i.e. the person of the speaker, sufficiently indicates Christ's person, in Whose person these words are uttered, as stated above (A. 1).
Reply Obj. 5: The conjunction "for" is set in this form according to the custom of the Roman Church, who derived it from Peter the Apostle; and this on account of the sequence with the words preceding: and therefore it is not part of the form, just as the words preceding the form are not.
THIRD ARTICLE [III, Q. 78, Art. 3] Whether This Is the Proper Form for the Consecration of the Wine: "This Is the Chalice of My Blood," Etc.?
Objection 1: It seems that this is not the proper form for the consecration of the wine. "This is the chalice of My blood, of the New and Eternal Testament, the Mystery of Faith, which shall be shed for you and for many unto the forgiveness of sins." For as the bread is changed by the power of consecration into Christ's body, so is the wine changed into Christ's blood, as is clear from what was said above (Q. 76, AA. 1, 2, 3). But in the form of the consecration of the bread, the body of Christ is expressly mentioned, without any addition. Therefore in this form the blood of Christ is improperly expressed in the oblique case, and the chalice in the nominative, when it is said: "This is the chalice of My blood."