You do realize the the copies were made for over thousands of year using scribes who at time made mistakes. Over such a long time of copying by this method it's meaning was surely altered. Translating these texts have also led to changes in meaning. These two things alone are enough to question the reliability of these text and I havent even mentioned that the texts were edited and added to for political purposes... Why do you think their are scores of different versions of the same damn text. Hell Harry Potter is a more reliable text at least it remains consistent from text to text.As I said before: "The written words themselves always stay the same from day to day or year to year and are therefore 100% reliable."
If someone makes a copy the original remains unchanged. If someone then makes more copies of copies and even makes translations of copies the original still remains unchanged and is therefore still 100% reliable.
To suggest the bible has not been subjected to copying errors, translation errors, and political augmentation is just folly not to mention ahistorical.
Copies of copies may indeed be less than 100% reliable but the original written words always remain exactly what they were unless you go back in time and get the authors to write something different.
They don't have the originals, and if they did would you trust the opiate induced ramblings of a desert tribe