By bearing a son, she had escaped another disgrace. She had said to herself: "Jacob hath a mind to return to the land of his birth, and my father will not be able to hinder his daughters who have borne him children from following their husband thither with their children. But he will not let me, the childless wife, go, too, and he will keep me here and marry me to one of the uncircumcised." She said furthermore, "As my son hath removed my reproach, so Joshua, his descendant, will roll away a reproach from the Israelites, when he circumcises them beyond Jordan."
Leah Schemed to Secure Her Place Before Jacob Left
Legends of the Jews 6:145