I find a lot of the Bible rough going, but especially Genesis. I was reading it a little while ago, and my recall of its opacity was confirmed. A couple of things that stuck in my mind-
-In what is usually called “the Flood” it rains, which had not happened before, but God also unleashes the “fountains of the deep”. In ending, or reversing, the separation of the waters above from the waters below, he actually reverses creation until a fairly early point, when he originally did this. “The Flood” is a lot more than a flood, even a world-wide epic flood that covers everything.
-Melchizedek is the king of Jerusalem and a, or the, priest of the one God. Abraham honors him, he does not honor Abraham, and he completely pre-exists and is outside of the Hebrew religion. There is a lot of debate about who and what Melchizedek was, but his existence has huge implications about how we regard everything else that comes after.