Council of Trent: Session XIII, Eucharist, Chapter I

CHAPTER I. On the real presence of our Lord Jesus Christ in the most holy sacrament of the Eucharist.

In the first place, the holy Synod teaches, and openly and simply professes, that, in the august sacrament of the holy Eucharist, after the consecration of the bread and wine, our Lord Jesus Christ, true God and man, is truly, really, and substantially contained under the species of those sensible things. For neither are these things mutually repugnant,-that our Saviour Himself always sitteth at the right hand of the Father in heaven, according to the natural mode of existing, and that, nevertheless, He be, in many other places, sacramentally present to us in his own substance, by a manner of existing, which, though we can scarcely express it in words, yet can we, by the understanding illuminated by faith, conceive, and we ought most firmly to believe, to be possible unto God: for thus all our forefathers, as many as were in the true Church of Christ, who have treated of this most holy Sacrament, have most openly professed, that our Redeemer instituted this so admirable a sacrament at the last supper, when, after the blessing of the bread and wine, He testified, in express and clear words, that He gave them His own very Body, and His own Blood; words which,-recorded by the holy Evangelists, and afterwards repeated by Saint Paul, whereas they carry with them that proper and most manifest meaning in which they were understood by the Fathers,-it is indeed a crime the most unworthy that they should be wrested, by certain contentions and wicked men, to fictitious and imaginary tropes, whereby the verity of the flesh and blood of Christ is denied, contrary to the universal sense of the Church, which, as the pillar and ground of truth, has detested, as satanical, these inventions devised by impious men; she recognising, with a mind ever grateful and unforgetting, this most excellent benefit of Christ.

Translation: J. Waterworth, The Canons and Decrees of the Council of Trent (1848), Hanover Historical Texts Project transcription (1995).