The land of "Canaan" that the Isrealites settled was an excellent choice from an economic perspective. It was centrally located between many thriving cultures/nations. What we now know as Palestine was a major corridor for trade between Africa, southern Europe and the near east. With trade came cultural exchange - ideas, stories, beliefs. Most ancient Hebrew writings share the same plot lines with all of these other cultures - from Adam and Eve, the Great Flood or Jonah in the big fish. These stories (myths) were shared with these early Hebrew traders.
Not to burst your happy bubble - but, there is no physical, archeological evidence of a large group (it is claimed to be up to 2 million) of people every being present on the Sinai Peninsula. Moses leading a group of people out of Egyptian "captivity" may have happened. But they never wandered for 40 years in the wilderness.