Well,..you're getting warm
- the challenge for you is to rightly differentiate what is from 'man' and what is from 'God' in the 66 books you esteem as 'infallible'. You'd have to prove infallibility in the words themselves and the mortal vessels used to communicate them, which is quite a feat, since anything coming thru human channels is conditioned by the limitations and imperfections of those faculties employed, and furthermore suffer under progressive translations in time.
Also note that some older writings are no longer applicable to a newer generation, and interpreted or explained away....such as the NT attempts to do by introducing a 'new covenant', and which Paul does by rejecting the law, for his gospel innovations. The different teachings in the Bible itself speak for its diversity, changing cultural trends and evolution of thought.