My master’s wife Sarah bore a son to my master in her old age, and he has given him everything he owns.
so she demanded of Abraham: “Drive out that slave and her son! No son of that slave is going to share the inheritance with my son Isaac!”
Abraham gave everything that he owned to his son Isaac.
He did not weaken in faith when he considered his own body as [already] dead (for he was almost a hundred years old) and the dead womb of Sarah.