For all the people who came out were circumcised; but all the people who were born in the wilderness by the way as they came forth out of Egypt, they had not circumcised.
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.