It happened, when all the kings of the Amorites, who were beyond the Jordan westward, and all the kings of the Canaanites, who were by the sea, heard how that Yahweh had dried up the waters of the Jordan from before the children of Israel, until we were passed over, that their heart melted, neither was there spirit in them any more, because of the children of Israel.
Which means a rolling, because God there rolled away that reproach of Egypt, which is a type of the flesh, and the life after the flesh. They longed for the flesh pots of Egypt. Egypt always is symbolic of living after the flesh and lusting after the flesh.