4 When his son Isaac was eight days old, Abraham circumcised him, as God commanded him.
5 Abraham was a hundred years old when his son Isaac was born to him.
6 Sarah said, “God has brought me laughter, and everyone who hears about this will laugh with me.”
7 And she added, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”
8 The child grew and was weaned, and on the day Isaac was weaned Abraham held a great feast.
9 But Sarah saw that the son whom Hagar the Egyptian had borne to Abraham was mocking,
10 and she said to Abraham, “Get rid of that slave woman and her son, for that woman’s son will never share in the inheritance with my son Isaac.”