If you take a look at other civilisations and cultures, all of them attempt to satisfy human curiosity about how they began. It was obvious to them how their group continued and increased, but how did it all start?
The first creative beings were usually female ones, because new life came from women giving birth. The men didn't always go along with that, which led to the male deities. These were generally more aggressive and demanded more obedience and worship, of course, When Adam disobeyed ( though he managed to blame it on Eve) humans were chucked out of their Eden paradise and forced to toil for a living, and, for women, to bring forth children in agony.