I suspect that most Christians regard the Bible as a single book and take for granted how and when those constituent parts were composed, much less how and when those 66 (or more?) books came to be collected and arranged into a single book. I myself became more aware of this process several years ago when I began looking into the claim that the King James Version was supposedly the only un-corrupted English translation. Bound up in that issue was, of course, the question of why certain books were included in the Bible and why others were left out. Not long after, I became embroiled in a lengthy online debate with a Roman Catholic over the question of canonicity. For those not aware, Catholics include some books in their Bibles that Protestants do not.
After the debate, which I felt I had "won", I came away with the sneaky suspicion that there were apparent weaknesses in the Protestant argument that my Catholic opponent had failed to point out. Perhaps the reason why that person didn't point out those weaknesses was because their argument was in many ways susceptible to the same sorts of critiques, namely the question of authority. My Catholic opponent would've done well to expose the fact that when I said that the Bible as a whole and the books individually attest to their own authority, my argument was completely circular. Of course, had my Catholic friend done that, I would've countered that relying on a supposedly infallible church body to decide what belongs in the canon only introduces one more participant into the circle.
I revisited the subject a few years later when I was teaching part of a Sunday School series on the doctrine of Scripture and the topic I was to teach on was the canon. Again I discovered the same problems, but this time I sought resolutions to those difficulties. What I discovered was that even Protestants within the Reformed tradition disagreed with one another over how best to go about addressing those issues and, in truth, none of them could satisfactorily escape the problems of circularity and subjectivity. This was certainly one of the things that helped precipitate my questioning of other doctrines with problems I had been brushing aside and ignoring.
Fast forward to a few months ago when I revealed to my church leadership that I no longer believed. When I mentioned in a discussion that the question of canonicity was one of the problems that led me to begin questioning the claims of Christianity, I was told that there was "more recent scholarship" that would address those questions. This, of course, raises the question of why it took 2,000 years for theologians in Christ's chruch to come up with a reasonable justification for the belief that the 66 books of the Protestant Bible are the right ones.
What follows is my written response to that "more recent scholarship" which turned out to be a book entitled
Canon Revisited, written by a New Testament professor and president of Reformed Theological Seminary in Charlotte, NC. I wrote this response after the book was presented to me and I returned the book along with this response, so I no longer have a copy in my possession. Keep that in mind if and when you decide to comment.
On a personal note, I think it's noteworthy that after I took the time to read this book and type up this response, the person who sent the book to me decided they no longer felt the desire to "cross swords" over this issue and instead just wanted to "express [his] love." In all honesty, it's hard for me not to see that as little more than an emotionally manipulative cop-out, even though I don't doubt the sincerity of the expression itself.