4 And he circumcised him on the eighth day, just as God had instructed him,
5 when he was one hundred years old. Indeed, at this stage of his father's life, Isaac was born.
6 And Sarah said: "God has brought laughter to me. Whoever will hear of it will laugh with me."
7 And again, she said: "Hearing this, who would believe Abraham, that Sarah breast-fed a son, to whom she gave birth, despite being elderly?"
8 And the boy grew and was weaned. And Abraham made a great feast on the day of his weaning.
9 And when Sarah had seen the son of Hagar the Egyptian playing with her son Isaac, she said to Abraham:
10 "Cast out this woman servant and her son. For the son of a woman servant will not be heir with my son Isaac."