"The Bible is only one book, heavily mistranslated, edited, and rewritten over centuries as it was passed down from different self-serving sources of power and authority"
Answer:
The Dead Sea Scrolls prove just the opposite and therefore obliterate this baseless charge.
One of the most important contributions of the Dead Sea Scrolls is the numerous Biblical manuscripts which have been discovered. Until those discoveries at Qumran, the oldest manuscripts of the Hebrew Scriptures were copies from the 9th and 10th centuries AD by a group of Jewish scribes called the Massoretes. Now we have manuscripts around a thousand years older than those. The amazing truth is that these manuscripts are almost identical!
"[The Dead Sea Scrolls] have provided Old Testament manuscripts approximately 1,000 years older than our previous oldest manuscript. The Dead Sea Scrolls have demonstrated that the Old Testament was accurately transmitted during this interval. In addition, they provide a wealth of information on the times leading up to, and during, the life of Christ."
--Dr. Bryant Wood, archaeologist
The only differences between the copies of the bible and the Dead Sea Scrolls from over 1000 years earlier were a few spelling variants. No doctrinal changes whatsoever. Additionally, no other work of antiquity comes close to the manuscript attestation of the New Testament documents. This completely flies in the face of the continual regurgitating conspiracy theory that "the bible is one book that has been mistranslated over centuries."
Resources
http://christiananswers.net/q-abr/abr-a023.html