Hello P & S.
It took a while for me to find the part you meant. It comes from Session XIII. (Please note it is good to provide the Session you are taking Chapters from because in the Documents Chapter 8, Canon 11 could refer to many different sections of the documents and without knowing which Session it is from, you have to go through all of the Sessions to find it.)
Here is the complete Canon: Session XIII, Chap.8, Canon 11 - “If any one saith, that faith alone is a sufficient preparation for receiving the sacrament of the most holy Eucharist; let him be anathema. And for fear lest so great a sacrament may be received unworthily, and so unto death and condemnation, this holy Synod ordains and declares, that sacramental confession, when a confessor may be had, is of necessity to be made beforehand, by those whose conscience is burthened with mortal sin, how contrite even soever they may think themselves. But if any one shall presume to teach, preach, or obstinately to assert, or even in public disputation to defend the contrary, he shall be thereupon excommunicated.”
In this canon, there are two factors - the anathema for saying faith alone is sufficient to receive the Eucharist **and **the automatic excommunication that a person incurs when he or she teaches, preaches, asserts or even defends someone who does any of the three contrary to the aforesaid anathema.
Now, I don’t have all the books of Canon Law and other sources to cross reference and triple check, but once a Canon has been laid down it pretty much only gets reinforced in future Documents and Councils and Actas, etc… This one you brought up concerns the Most Holy Eucharist and it’s disciplines. Never has it been before Trent that a person in mortal sin could receive the Eucharist because as St. Paul said and the Canon points out, he or she would receive condemnation unto himself. Trent only clarified this and re-asserted what the Apostles taught about Communion. The person must make a good Confession. Can anyone teach or preach or assert that faint alone and a contrite heart is sufficient a substitution for sacramental confession? NO!
Has anything been said contrary to this in subsequent years? I highly doubt it, though as I’ve said I lack the books here in my home to check ALL sources to confirm that. PLUS, it would take a day or so even if I had all the books. You’ll need to do some research.
But as I’ve said before, I’m no expert on anything except macaroni and cheese with nice little hot dogs in it plus ketchup! Doesn’t that sound yummy?
Glenda