Because of what had happened to Sarah, Abraham's wife, the Lord had made it impossible for any woman in Abimelech's palace to have children. So Abraham prayed for Abimelech, and God healed him. He also healed his wife and his slave women, so that they could have children.
When Esau looked around and saw the women and the children, he asked, “Who are these people with you?” “These, sir, are the children whom God has been good enough to give me,” Jacob answered.
The people who once were well fed now hire themselves out to get food, but the hungry are hungry no more. The childless wife has borne seven children, but the mother of many is left with none.