[quote="Dave_Noonan, post:13, topic:283485"]
I think at least some Protestants would say that much of the Old Testament is not all that relevant to salvation
That's unfortunate. The OT is the context in which Christ came to save us. The early Church had no NT, only the OT, and thrived. Based on that, I would speculate that the OT is the more relevant scripture.
and moreover that Christians worship Christ—that it's not so much a religion of "the book" as, say, might be true of Islam.
Someone should tell the Fundamentalists. Some of them seem to put more emphasis on "the book" than they accuse Catholics of putting on the Saints. :rolleyes:
And because diversity in the biblical canon of the OT has always been part of the tradition of the Church, your friend probably would argue (if he's familiar with the history of the Bible, which you sort of imply) that it's not possible to know "that you [have] the whole authenticated version of the Bible," except those books from the OT which all Christians have held in common.
While there has always been some diversity in the canon of the OT, all apostolic churches include some common books of the deuterocanon (Tobit, Judith, the additions to Esther, Wisdom, Sirach, Baruch, and the additions to Daniel). The Protestants were the first Christians ever to exclude these. source