And Sarah my master's wife bare a son to my master when she was old: and unto him hath he given all that he hath.
And Avraham gave all that he had unto Yitzchak.
Wherefore she said unto Avraham, Cast out this bondwoman and her son: for the son of this bondwoman shall not be heir with my son, even with Yitzchak.
And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sarah's womb: