I read the article and many others just like it. The early church that had the original documents “heard” the Holy Spirit in the writings and were convinced as to their authenticity. Through reading, they believed that the Scriptures they had were the very words of God himself and they were able to distinguish the authentic from the spurious. It is as Jesus said in John 10:27: “My sheep hear my voice and they follow me”. The fixing of the “canon” some two to three hundred years later did not authenticate the books of the bible, but merely cataloged them.
Ah, thanks. This is a Catholic statement, unlike that Calvin's self-authentication nonsense. This, of course, also validates the Deuterocanon.