Precept--
I'm going to try really hard to meet your demand without driving the thread off-topic. You'd better try equally hard to keep whatever counter you so obviously want to make on topic.
Here's one I found earlier and made a thread on: Isaiah 34:14
In early Hebrew myth there was a character called Lilith, who apparently remined a part of of the Christian and Jewish oral traditions until at least the medieval times. She was the first wife of Adam. The story basically goes like this: God created both man and woman from the ground. Lilith was the woman and she refused to submit to Adam because she claimed that they were both made from the same gound and therefore were equal. She then said the sacred name of God and then left Adam. She stayed on an island for a while and gave birth to 100 demon children per day. God sent three angels (Senoy, Sansenoy and Semangelof) to command that she return to Adam (on pain of death). Somehow she got out of it (the myth is not clear), and God punished her by making 100 of her demon children die every day. She is credited with killing children in their sleep and seducing dreaming men. After she was gone God gave Adam Eve, the story of which you know.
As far as I can tell from my research, she was very popular character in oral traditions for a long time, but now most people don't even know who she is, and even if they do, they don't believe she existed. The oral tradition surrounding her seems to have just disintigrated.
However, before you write her off as one of those oral traditions that weren't "really" part of "God's story", know that she made an appearance in the Torah itself in Isaiah 34:14 and obviously therefore ended up in the Bible itself.
So if we are to assume that only those oral traditions which are truly "God's story" end up in the Bible, we have to therefore assume that because Lilith ended up in the Bible, at least part of her story must be true. She may not have been the first wife of Adam; indeed, she may not have been anything more than a common demon, but she "must" have existed because she made it into the Bible, "God's story", which cannot be false.
What's interesting is that despite having made it into the Bible, she still starts to fade away slowly over time. Yes, the content of the Bible changed from one translation to another! The earliest Hebrew passages included Lilith's name (Anders states in the other thread that "Perhaps I should have pointed out that three different Hebrew Bible editions all write Lîlît in Isaiah." I cannot confirm this, because my Bible is the American Standard Version) but many subsequent translations do not include Lilith's name at all. Even worse, the original Lilith, a demon, somehow becomes a variety of other things, including a screech owl. This particular passage definitely changes from one translation to another!
An Example:
The American Standard Version of the Holy Bible:
And the wild beasts of the desert shall meet with the wolves, and the wild goat shall cry to his fellow; yea, the night-monster shall settle there, and shall find her a place of rest."
(The Lilith of the oral tradition becomes the "night-monser", but at least she's still female and some kind of demon).
Douay-Rheims Bible:
"Hyenas will meet with jackels. Male goats will call to their mates. Screech owls will rest there and find a resting place for themselves."
(Not even a demon is found in this version, let alone Lilith).
So... if God only allows those oral traditions which are "true" to end up being a part of his story "the Bible", and if he doesn't allow his story to change, then why does the passage about Lilith, which was in the earliest versions of Isaiah and which used to be an oral tradition (just like all the other material from the Bible), change in the Bible itself?