Chapter I, Beginning of 7

Latin (Borgnet)English

p. 370

7. Secundum igitur ea quae dicta sunt, patet quod nullus modus motus naturalis est quo moveatur panis ad formam corporis Christi, vel vinum ad formam sanguinis Christi: et ideo tales locutiones tales motus signantes non sunt recipiendae, nec a sanctis tales locutiones ante non positae multum inveniuntur. Mutatio autem in physicis vocatur, quae est de non subjecto ad subjectum, sicut generatio: vel quae est de subjecto ad non subjectum, sicut corruptio. Talis autem mutatio videtur esse panis in corpus Domini, et vini in sanguinem: quia ante confectionem in oratione Canonis dicit sacerdos: « Ut nobis corpus et sanguis fiat Domini nostri Jesu Christi. » Si autem fit, tunc oportet quod secundum substantiam panis mutetur in corpus Christi: quia non fit, nisi quod sic mutatur, quando dicitur fieri simpliciter: non enim simpliciter fit Petrus, si dicatur quod Petrus fit albus.

Adhuc autem hoc videtur accipi ex verbis Ambrosii, qui dicit, quod sermo Christi creaturas mutat, et intendit, quod panis mutatur in corpus Christi.

7. Therefore according to those things which have been said, it is clear that there is no mode of natural motion by which bread is moved to the form of the body of Christ, or wine to the form of the blood of Christ; and therefore such locutions signifying such motions are not to be received, nor are such locutions not previously posited by the saints found much. But in physics that is called change which is from non-subject to subject, as generation, or which is from subject to non-subject, as corruption. But such a change seems to be of bread into the body of the Lord, and of wine into blood, because before the confection in the prayer of the Canon the priest says: "That it may become for us the body and blood of our Lord Jesus Christ." But if it becomes, then it is necessary that according to the substance bread be changed into the body of Christ, because nothing becomes unless it is thus changed, when it is said to become simply. For Peter does not simply become, if it is said that Peter becomes white.

Moreover this seems to be received from the words of Ambrose, who says that the speech of Christ changes creatures, and intends that bread is changed into the body of Christ.