16th Century
Council of Trent
Scholastic & Reform
Council of Trent (1545 – 1563), Ecumenical council that solemnly defined the doctrine of the Eucharist. Wikipedia
"If any one denieth, that, in the sacrament of the most holy Eucharist, are contained truly, really, and substantially, the body and blood together with the soul and divinity of our Lord Jesus Christ, and consequently the whole Christ; but saith that He is only therein as in a sign, or in figure, or virtue; let him be anathema. "
Session XIII, Canon I
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Why this quote matters
Dogmatic definition against Protestant denials.
Source citation: Council of Trent, Session XIII, Canon 1.