Little Hawk -I am the Guest you refer to.
As one reads the Hebrew Bible, one does indeed read about murder, incest, polygamy slavery and genocide.
Polygamy made sense to a nomadic peoples for economic reasons. Slavery was not the slavery we associate with American Black slavery; it was for a period of not more than seven years, and slaves were to be treated much as the family was...rest on the Sabbath and holidays, etc.
Murder & incest were taboo, and most instances ends badly for the actor, and there is always a moral lesson to be learned from those actions. Genocide is more problematic, but lessons are to be learned there, too.