Dizerner: I think you have a very low view of inspiration that may be coloring your perspective.
That's neither here nor there. Genesis either says something or it doesn't. If anything a lower view would help get at the text because it wouldn't be as prone to reading later developments into it.
Singalphile: From reading around a little, I think it must not have been a necessarily bad thing.
Me too. When I posted, I was going out on a limb with no prior research except my sparse familiarity with Canannite origin myths. Afterwards, I started reading some Jewish authors, and some make many of the same points. In Richard Elliot Friedman's commentary on the Torah, he writes:
2:9 "tree of knowledge of good and bad. Not good and "evil" as this is usually understood and translated. "Evil" suggests that this is strictly moral knowledge. But the Hebrew word has a much wider range of meaning than that. This may mean knowledge of what is morally good and bad, or it may mean qualities of good and bad in all realms: morality, aesthetics, utility, pleasure and pain and so on. It may mean that things are good or bad in themselves and that when one eats from the tree one acquires the ability to see these qualities... Perhaps the meaning was clear to the ancient reader who knew the immediate connotations of the words. It is not clear to us in the text of the story as it has survived."
Later regarding verse 3:14ff
Stories in Genesis frequently develop etiologies - explanations of the origins of names and practices. In Genesis 3, we have
1. The story of why snakes do not have legs.
2. The etiology of the perceived natural enmity between humans and snakes
3. The etiology of man's domination of woman in the world in which this story was composed.
4. The author's etiology of woman's being drawn to man and..
5. man's mating with woman.
6. The etiologies of clothing
7. labor pain in childbirth
8. work
9. knowledge of good and bad
10. death
The Genesis creation story does not, of necessity, have the dualistic sinless/sinner concept in it. This can certainly be debated, especially if you include Paul's use of the story. But it is well within the realm of scholarship, both Christian and Jewish, to make the claim that this dualism is missing from the text.