Thematic Bible: The ruling personality in the home

Therefore 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. And the thing was very displeasing in Abraham's sight because of his son. And God said unto Abraham, Let it not be displeasing in your sight because of the lad, and because of your bondwoman; in all that Sarah has said unto you, listen unto her voice; for in Isaac shall your descendants be called.