1 The Lord blessed Sarah, as he had promised,
2 and she became pregnant and bore a son to Abraham when he was old. The boy was born at the time God had said he would be born.
3 Abraham named him Isaac,
4 and when Isaac was eight days old, Abraham circumcised him, as God had commanded.
5 Abraham was a hundred years old when Isaac was born.
6 Sarah said, “God has brought me joy and laughter. Everyone who hears about it will laugh with me.”
7 Then she added, “Who would have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”