For it is written that Abraham had two sons, one by the slave woman and the other by the free woman.
And Hagar bore Abram a son, and Abram gave the name Ishmael to the son she had borne.
and she said to Abraham, “Expel the slave woman and her son, for the slave woman’s son will never share in the inheritan
So Sarai said to Abram, “Look now, the LORD has prevented me from bearing children. Please go to my maidservant; perhaps
Now the LORD attended to Sarah as He had said, and the LORD did for Sarah what He had promised.