Genesis 21:10-12

¹⁰and she saith to Abraham, 'Cast out this handmaid and her son; for the son of this handmaid hath no possession with my son — with Isaac.'c

¹¹And the thing is very wrong in the eyes of Abraham, for his son's sake;

¹²and God saith unto Abraham, 'Let it not be wrong in thine eyes because of the youth, and because of thy handmaid: all that Sarah saith unto thee — hearken to her voice, for in Isaac is a seed called to thee.d