Argument from scriptural inerrancy
The argument from scriptural inerrancy states that a holy book is free from errors and therefore had a divine origin. The argument is often stated in a way similar to Surah 4:82 ,
- "Do they not then consider the Qur’an carefully? Had it been from other than Allah, they would surely have found therein much contradictions."
The argument is related to the deductive argument from design because every other source of inerrancy, apart from God, is rule out.
- A particular holy book is inerrant.
- Humans could not have been entirely responsible for writing because that would introduce error.
- From (2), There is no other way of achieving in errancy apart from a divine source.
- From (1) and (3), the writing was coordinated divine source.
- From (4), God exists.
Specific holy books
While some Christians believe that the Bible is inerrant, Christian apologetics tends to focus on the Bible's internal evidence to establish the existence of God, rather than considering the overall characteristics of the book as proof enough. While acknowledging the many authors of the Bible, Mike Culpepper argued that the Bible contains inter-author consistences that are "most assuredly beyond the writing abilities of any human".  His aim is to establish the Bible is the word of God "not necessarily based on what it says [...] but how it was put together". 
Another example of argument of inerrancy to authenticate the Bible: 
XX. BECAUSE OF ITS INTEGRITY
No internal contradictions, nor external contradictions, exist in the Bible. Of course, there are some "apparent contradictions," but those are left by God to confuse skeptics destitute of faith and confirm the faith of those willing to study with a believing heart.
Typically, once the Bible is established as true, the argument move on to consider the existence of God based on the Bible's internal evidence.
Inaccurate scientific and historical statements
Different versions exist
Multiple versions of each holy book exist. They can't all be right but they can all be wrong.
If humans are incapable of writing an inerrant book, they are also incapable of evaluating if a book is inerrant.
- Understanding the Qurán - Page xii, Ahmad Hussein Sakr - 2000
- Press release, "Author Provides New Proof That Bible is Truly Word of God", February 20, 2014 
- Mike Culpepper, Fitly Framed Together: The Bible", WestBowPress 2013, p.2
- Greenville Church, "Why I Believe the Bible", retrieved 4th Apr 2014 
- Contradictions in the Quran 
- Harold C. Felder, The Qur'an: Heavenly or Human?
- History of the Quran, Wikipedia
- Rose Ave. Church of Christ, "The Bible is complete and perfect", retrieved 4th Apr 2014