What then do the Writings say? Send away the servant-woman and her son; for the son of the servant-woman will not have a part in the heritage with the son of the free woman.

For it is written, that Abraham had two sons, one by a servant woman, and the other by a free woman.

But he by the servant woman was born of the flesh, and he by the free woman, by the promise.

So, brothers, we are not children of the servant-woman, but of the free woman.

For it is written, "Rejoice, you childless woman, who cannot give birth to any children! Break into song and shout, you who feel no pains of childbirth! For the children of the deserted woman are more numerous than the children of the woman who has a husband."