What Is the Name of This God?

In exodus six, god tells Moses that he used to be known as el shadi. The rabbis in the oral tradition thought they had come up with a pretty good explanation for this name. But it's not really a new name, because if you read through genesis, it's obvious that it's not a new name. And so what foreman suggests here is that God can go into this exodus story, and he can talk all about god's power, but that's not who god ultimately is.