Quote by KnitNut; I seem to recall that Trent actually left open the possibility of additional entries to Rome’s canon…I don’t think it is a truly settled matter in those terms./
The subject of canon is really not that complicated; When one views the historical reasons of why the Canon= measuring standard and when it was applied.
After 400 years of persecution of the Catholic Church was lifted, the Church was able to council to settle the matter of the books to be used in each Apostolic Successor’s See that was being used in their Liturgies.
This is one of the main reasons why the books of the bible were canonized, to be used in Her Liturgy.
Each Ethnic group who were using their own books in Liturgy were considered already canonized by their own standards to be used in each one’s Liturgy. Are these authentic? Yes according to each one’s canon used in their Liturgy. Are they Universally canonized No.
But there is only one Universal Canon that all Catholics are to adhere to as the Canon of scripture, which the Church settled in council. Although many of the books came into question, the canon remained rock unchanged.
What proved a bible book as inspired? The canon consisted of proving the books authenticity by an apostolic author, and it had to be used in the Catholic Liturgy since apostolic times to the present. Pretty hard standards.
The Council of Trent never canonized the Deutero books. Trent only closed the existing canon so that the Deutero books are never to be questioned again period.
I believe it is the Orthodox who do not use the book of Revelations in their Liturgies, thus they may not recognize it as their canon in the Liturgy. But it never discounts or challenges the authenticity of the book of Revelations.
Liturgy simplifies each apostolic successors canon. Yet each Liturgy does not discount or challenge the universal canon of the Catholic Church.
Those Eastern Catholics (Apostolic Church’s) who fell into heresy or heterodoxy early on is another subject of liturgical biblical canons and questions??
Peace be with you