2 For Sarah conceived and bore Abraham a son in his old age, at the set time that God had spoken to him.
3 Abraham called the name of his son who was born to him, whom Sarah bore to him, Isaac.
4 Then Abraham circumcised his son Isaac when he was eight days old, as God had commanded him.
5 Now Abraham was one hundred years old when his son Isaac was born to him.
6 And Sarah said, “God has made me laugh. All who hear will laugh with me.”
7 Also she said, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”
8 So the child grew and was weaned. Then Abraham made a great feast the same day that Isaac was weaned.