IMO....
1. Determining what Books are and are not THE inscripturated, written, verbally inspired words of God - the norma normans/Rule/Canon - based on whether Jesus UNDENIABLY quoted from it and specifically labeled the book "Thus says the LORD..." is not a good rubric. We'd have to reject the entire New Testament and likely nearly every book in the OT, too.
2. Determining what Books are and are not THE inscripturated, written, verbally inspired words of God - the norma normans/Rule/Canon - based on whether something from it is simply quoted is also a poor rubric. A couple of weeks ago, my pastor quoted a book about Mellinnels; he actually held the book and quoted from it (verbatim). Does THAT prove that ergo that book is specifically SCRIPTURE? No. Truth is truth - WHEREVER such may be stated; just because something states it doesn't make it the Rule/Canon/Norma normans... it just means something true is recorded somewhere. All truth comes from God but that doesn't mean every document that states it comes from God. Even the Devil can say something correct, lol.... Even the Koran is right here and there, doesn't mean we must include the Koran in every Christian biblical tome. Probably 99% of books contain something in them that's true.... does THAT per se mean ERGO that books is Scripture and should be included in our Christian Bible? IMO, no.
3. Determining what Books are and are not THE inscripturated, written, verbally inspired words of God - the norma normans/Rule/Canon - based on whether some JEWS read the book is also, IMO, really bad rubrics. Jews aren't Christians. And of course, the Jews officially embraced only 39 books (by our count), they did so OFFICIALLY at the Council of Jamnia in 90 AD, so if we are to accept the Books the JEWS did then all Christians would have 39 books in our Bible, essentially what Calvin defined as the "Old Testament." But do we ask Muslims to determine our Bible? Why ask Jews?
4. For some, there is an uncomfortable reality here: Christians have always accepted the Authority of "Scripture." Christians have looked to "Scripture" as the Rule/Canon/Norma normans. We see this boldly with the ECF and it's certainly implied by Jesus Himself. "The Rule of Scripture" (today often known as "Sola Scriptura") is solid in Christian history. But, unlike the Jews, Christians have NEVER ecumenically, officially and formally determined what (exactly) IS and IS NOT that "Scripture." Sorry if that makes some uncomfortable but that's just history. Beginning around the 4th Century, there have been some very limited, local, unauthoritative synods that have spoken and beginning in the 15th century, a few individual denominations that have spoken, but nothing ecumenical or formal or binding or even determining. Sorry, just historical fact. There are 66 books (by our count) that have had wide, historic embrace as to the inscripturated, written, verbally inspired words of God - the norma normans/Rule/Canon, but even here, NOT always as EQUALS (the OT often seen as subject to the NT.... some NT books regarded as less authoritative than others, ie "spoken against). Those are the Books Calvin declared are Scripture and the ones the Anglican 39 Artlicles suggest are canonical/norma normans. There are an additional half dozen or so books that have LESS consensus and generally have been given LESS authority/function.... another dozen or so even less.... another two dozen or so even less.... another 50 or so even less.
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