Abraham prayed thus for Abimelech: "O Lord of the world! Thou hast created man that he may increase and propagate his kind. Grant that Abimelech and his house may multiply and increase!" God fulfilled Abraham's petition in behalf of Abimelech and his people, and it was the first time it happened in the history of mankind that God fulfilled the prayer of one human being for the benefit of another. Abimelech and his subjects were healed of all their diseases, and so efficacious was the prayer offered by Abraham that the wife of Abimelech, barren hitherto, bore a child.