Dragons in Genesis

You asked, I answered. God, the Devil, Santa, Dating Sims, and a little girl lost in the woods.

Pack your bags and grab your unleavened bread, we're departing the land of plenty and marching into the land where people die of dehydration and starvation. But never fear, our Lord is here! He'll give us everything we need, provided we don't upset him in any way. Then he might kill us horribly.

It's time for Passover. Grab your goats, don't leaven the bread, and spatter some blood about to protect your children from death deities. Oh, and there might be some divine cannibalism involved.
It's a god eat god world out there and I'm wearing unleavened bread underwear... or something like that.

Yahweh sets up Pharaoh for failure and even refuses to allow the Israelites to be freed so he can enact his master plan which includes turning all the dirt in the world into lice, turning all the water into blood (except for the water that was overlooked), and worst of all... FROGS!

Mosessss... just killed a man.
Put a rock upside his head.
Buried in the sand and now he's dead.

If you want to build a Jewish lawgiver, you'll need one part Akkadian king, a Babylonian conqueror, a pinch of Egyptian miracles, two pounds of Semitic invaders, and a touch of Egyptian monotheism. Mix well and bake for several centuries until golden-calf brown... or until people believe it's true. Let cool and serve on two stone tablets.

A variety of pre-biblical texts are drawn upon to craft the tale of Joseph as the patriarch continues his adventures in Egypt. His life is filled with deception, intrigue, and brutality, and his methods of divination come not from Israel, but from Egypt and will later be banned by the priests of Jerusalem.

Genesis concludes with a novella about Joseph, a young man who is sold into slavery by his brothers only to rise above the adversity to rule over a pair of nations and save the world from starvation. Only the story is much deeper than that. It's a tale about theological clashes and staggering anachronisms and subtle literature. It's a tale of triumph and betrayal and redemption. But mostly it's about Egyptian and Canaanite gods and how those gods influenced the stories in the Hebrew Bible.

There's a scene borrowed directly from the Epic of Gilgamesh and we find some strange genetic experiments involving goats. Gods are abducted, another is defeated in a wrestling match, and a hilltop shrine is established multiple times and a sacred grave keeps moving about. We cover all this and more in the story of Jacob.

Despite being regarded as one of the most important figures in the Old Testament, Isaac is virtually a non-entity. He isn't an active character in a single story that's original to him. Why is that? Could it stem from his origins as a pagan god whose worship fell out of favor within the Second Temple community?