Genesis 21:10-13

King James Version

¹⁰ Wherefore she said unto Abraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Isaac.

¹¹ And the thing was very grievous in Abraham's sight because of his son.

¹² And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called.

¹³ And also of the son of the bondwoman will I make a nation, because he is thy seed.