i almost did not respond to your question,,but i should.,,,why is because you are asking a question where you might receive answers in the billions(earths population),,,,,,,so lets narrow it down,,,,,,,
as you know there are the several books we have in our possession,but their are different versions,i.e. k.j.v.,Vatican,interlinear ect.,,,,and they were taken from several different sets of manuscripts. and interesting article is "textas receptis",,,(the received text),the text we had/have,,the ones in our possession ect.,,,,the several sets of , manuscripts in the religions possession are complete(from a certain date) the older manuscripts are not,,,but still when compared to all of them as a whole seem to agree.
the reason why i said i almost did not reply is this,at which point do you cut off the holy scriptures by importance to the church and say no others belong?,,,,well i first read the king James version of the bible(but with a twist),,,twist was,it was a pilgrims addition king James version printed in 1874. in the preface of the older kjv bibles it was explained that at the time of the interpretation(these were a complete copy of all of the letters and books provided to the interpreters by king James,but were not to be considered a complete list of books pertaining to the faith),,,this is omitted from all of the modern copies of the k.j.v.,,,,,,
i should back up,,,stop and look up the definition to the word "bible",,,,,,it has nothing to do with the christian faith.,,,,that is bible means "a set of books set into one binding/set ect.),,,,,so if you took all of the mother goose books and set them in one collection/book,,,it is the "mother goose bible",,,,,so hence we have the "shooters bible",,,and many others.,,,you ask "why so many bibles?",,,,,,,,but your real question from the other statements on your thread should be "why so many christian bibles?",,,,,,i recognize you as christian from the postings so will address as to pertaining to christian beliefs,,hence.
so beginning with Christ,,,and his apostles,disciples,,and those known converted by them i will proceed.,,,,,,,,,,if it were the Islamic bible they believe in several books we call the old testament but none of the christian writings.,,,to them the prophets,books of Moses and the Koran is what they call the bible.,,,,,now to the Hindu,,there is no definition and all of it is.,,,in the Jewish faith their is the torah,Kabbalah ect.,,,,,, but your question about the christian bible came up very early after the Crucifixion and was addressed almost immediately by the church itself.
so to narrow it down?,,or can we?,,,Luke and Mark,,,,neither of these two were apostles,both of the letters/books they wrote are in what we call the christian bible(i should say i agree they do belong),,,but both of these two left the christian faith(offended by Christ that they were to eat his body and drink his blood),,but both were later rejoined to the faith one by peter the other by Barnabas?,,or maybe Paul.
now i bring these two up to point out that most will say the "new testament is written by the apostles",,,which is not true,,,,it contains letters from "some of the apostles,two of the original 70 disciples,and the rest of the apostles excluded,and or the other 70 disciples",,,,,why is because of authentication,,,
now Paul as we know died,,,peter died,James died,,,ect.ect.,,,,,,the entire 12,,,,,were put to death except for john,,,,he was exiled to pat-mos,,,,,,,,
Polycarp of Smyrna: The Second Century Heretic Fighter ,,,,
Polycarp - Wikipedia, the free encyclopedia ,,,,now why?,,,,of the last of the remaining 12 apostles,,,john the apostle,,,gave endorsement to "polycarp",,,,,the one spoke of in scripture as "the one whom the lord loved,,,appointed polycarp bishop of smyrna.,,,,,
now look at the rest of the list of books written by those written between ad 52 and ad 200 by the church,,,,here is the list of the names of the 70 deciples,,,and those given atthority over the 7 churches in aisa,,,,,
CHURCH FATHERS: Against Heresies (St. Irenaeus) here are a few more books the church wrote in the first 175 or so years after the crucifiction.,,,,,,,
but one must modify their own faith,,,,that is if we read the letters written it barly resembles the christian faith in 2013,,,,which is why it is excluded,,,,,,,,,,,,this is the faith i follow,,,,i do not have disrespect for the ainchient of days,,,only the sinner celabrate their birthday,christ is no sinner and does not celabrate his own.the eighth day is the high sabbath.,,,,,,well why calculate it to the iota and etta?,,,,