Sarah, my master's wife, bore a son to my master when she was old. He has given all that he has to him.
Therefore she said to Avraham, *Cast out this handmaid and her son! For the son of this handmaid will not be heir with my son, Yitzchak.*
Avraham gave all that he had to Yitzchak,
Without being weakened in faith, he didn't consider his own body, already having been worn out, (he being about a hundred years old), and the deadness of Sarah's womb.