Gen 17v18-21, 21v8-14:
'And Abraham said to God, "Oh, that Ishmael might live before You!" Then God said: "No, Sarah your wife shall bear you a son, and you shall call his name Isaac; I will establish My covenant with him for an everlasting covenant, and with his descendants after him. And as for Ishmael, I have heard you. Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly. He shall beget twelve princes, and I will make him a great nation. But My covenant I will establish with Isaac, whom Sarah shall bear to you at this set time next year."...So the child grew and was weaned. And Abraham made a great feast on the same day that Isaac was weaned. And Sarah saw the son of Hagar the Egyptian, whom she had borne to Abraham, scoffing. Therefore she said to Abraham,"Cast out this bondwoman and her son; for the son of this bondwoman shall not be heir with my son, namely with Isaac." And the matter was very displeasing in Abraham's sight because of his son. But God said to Abraham, "Do not let it be displeasing in your sight because of the lad or because of your bondwoman. Whatever Sarah has said to you, listen to her voice; for in Isaac your seed shall be called. Yet I will also make a nation of the son of the bondwoman, because he is your seed." So Abraham rose early in the morning, and took bread and a skin of water; and putting it on her shoulder, he gave it and the boy to Hagar, and sent her away.'
Abraham got it wrong big time, so God told him to LISTEN to his wife Sarah and to do what she said!
Husbands, need to LISTEN to what their wives are saying, for quite often they are right when the husband is wrong!
Yahweh Shalom...