But God said, “On the contrary, Sarah your wife will bear you a son and you must name him Isaac. So I will confirm My covenant with him as an everlasting covenant for his seed after him.
but to the sons of Abraham’s concubines, Abraham had given gifts and sent them away from his son Isaac while he was still living, eastward to the land of the east.
Then the king said to his servants, ‘Tie him up hand and foot, and throw him into the outer darkness; in that place will be weeping and gnashing of teeth.’
They left us, but they didn’t really belong to us. If they had belonged to us, they would have remained with us. But they left us so it became clear that none of them belongs to us.
But Gilead’s wife bore him sons, and when the wife’s sons grew up, they drove Jephthah out and said to him, “You won’t inherit in our father’s house, for you are a son of another woman.”