Firstly, there is the need to determine who wrote a each passage in question, when, and their reason for writing (religious politics, etc.)
There is little doubt that the Israelites were the hill-dwelling Canaanites, and it is likely they were always there, rather than as a result of being given a "promised land". The stories they wrote were intended to shore up their claim to authority and legitimacy, rather than being a literal record of exactly what happened. In other words, the stories were created histories, in which past events were written solely with the intent of influencing the times in which they were living. Propaganda, if you like.
For example, which of the writers was actually present to record what happened during "Creation"? And why does each Creation story (P account and the J account) contradict one another? Because each group of writers was using parables to push their point to their own community.
Writing as a form of communication did not come into vogue until several centuries after the Exodus/Moses event, and was rejected by many elements of the nation during the 8th to 5th centuries, when much of the Scriptures were written. Writing was confined to a sector of the elite class, scribes who were likely associated with the royal household.
I suppose the WT will point to Isaiah "predicting" Cyrus, conveniently ignoring the fact that a lot of Isaiah was written during and after the Neo-Babylonian period, some 200 years after Isaiah lived and died.
Analyse the Bible as you would any other piece of literature. Unless you still believe in Santa Claus and the Tooth Fairy.
Doug