Isaac in the Tila Game of Throne?

In the original story abraham actually did sacrifice isaac. And then my theory is that in the original story, this is just a theory, he was rewarded with a new son whose name was judah and that's where the the history of the south comes from. In the north, we had a different story about a trickster, jacob or israel, who did all kinds of things. And at some point, a certain point, they had to stitch together these two stories. So they said, ok, let's revive isaac,. Let's make him the father of jacob, and let's move judah to be the son of jAcob