Genesis 21:10-12

New Revised Standard Version Catholic Edition

¹⁰ So she said to Abraham, “Cast out this slave woman with her son; for the son of this slave woman shall not inherit along with my son Isaac.” ¹¹ The matter was very distressing to Abraham on account of his son. ¹² But God said to Abraham, “Do not be distressed because of the boy and because of your slave woman; whatever Sarah says to you, do as she tells you, for it is through Isaac that offspring shall be named for you.