I question the stories of the bible, not the intentions behind them. Oral history preceded written history for an undetermined amount of time. Story tellers tend to embellish and exaggerate. Why should the stories in the bible be any different from any other stories?
Much of the Book of Genesis is oral history put into written form, at least before the adult life of Moses. The story tellers were bound to make mistakes, intentionally or otherwise. Whether a story is complete fiction or not is up to the reader to decide.
Many people see the first and second chapters of Genesis as a single creation story. I disagree. The first chapter ends in the wrong place. It should end at the third verse of chapter 2, with the fourth chapter starting another story. If it was meant to describe the sixth day of creation, even partially, it would be clearly understood as such.
Why does the creation of light precede the creation of the source of the light? Who is God talking to when he says “us” and “our” in the bible? He said “us” before creating mankind. Details matter. Did we adopt the seven-day week from the creation story, or was the creation story created to explain the reason for the seven-day week being observed by the culture of the time?
The timeline of the story of Adam and Eve, and the generations that follow, doesn’t agree with historical evidence. The timeline suggests that mankind has only existed for around 6000 years. We have evidence of cities and cultures far older than 6000 years. Perhaps that timeline only pertains to the twelve tribes of Israel, God’s chosen people.
Modern scientific theories suggest that human beings originally consisted of multiple species, or subspecies. The modern humans, Homo sapiens, are the only ones that survived, or so it seems. And where did all the people go? Using simple calculations, we can understand the surface of the earth wouldn’t support a population that’s been around a really long time. Perhaps humans have been almost completely wiped out of existence more than once.
Some theories suggest that Cain and Abel were twin brothers. The text can certainly be interpreted that way, but it doesn’t specifically say they were born at the same time.
Cain was sent away for killing his brother. How did he learn to kill? Where is the land of Nod, and who is the wife he had sex with? There aren’t any “facts” available to support any of the theories I’ve heard, including various racist beliefs. Again, details matter.