If the bible were truly inspired by an infallible omnipotent god, it would answer every question we could possibly ask of it and answer every argument used to discredit it.
There will always be questions we can ask that won't be within the scope of book (i.e. that are irrelevant).
As for discreditting arguments, no matter how detailed and clear a book is, there will always be people prepared reject it if it suits them.
No one argues whether 2+2=4, if the bible had clear answers on questions of history it would be taught in schools and not relegated to the fringe groups of society like the Christadelphians. The fact that you have to gather into sectarian groups and have no higher authority or public accountability to the to actual _true_evidence_ of nature discredits the bible.
If god really existed he could put a satellite in orbit or had one of the angels record the entire creation on modern man-made technology that no one in his right mind could dispute, its like looking at photo's of the earth that the astronauts brought back or the videos of them on the moon. You'd be hard pressed to dispute a VISUAL record of history. The fact that the bible uses words of men no less, proves its not from god. Think of all the extra work and inefficiency brought by putting your message in a book that has to be copied via ancient technology or by human beings and you set yourself up for disaster. If thats the best you can expect a god to do about his own message, you know its not from god! Think about the half-witted, lazy, kind of god that is! It's absurd to assert that a true god would be capable of such ignorance as is found in the bible.