The one thing that I understand that validates the bible comes from one of the bibles scriptures, 2 Timothy 3:16, which states:
All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
Opposing views of course state something like this:
You say the bible is true because the bible says it is.
In other words circular reasoning. Hmmm, "circular reasoning", now where have we heard that before?
Nevertheless, the bible did not exist when 2 Timothy was written. 2 Timothy is specifically speaking of scripture, not the bible. Now, who decided what was scripture and what was not scripture and how do we know what was and what was not inspired by God.