2. So Sarah became pregnant and bore Abraham a son in his old age at the appointed time that God had told him.
3. Abraham named his son – whom Sarah bore to him – Isaac.
4. When his son Isaac was eight days old, Abraham circumcised him just as God had commanded him to do.
5. (Now Abraham was a hundred years old when his son Isaac was born to him.)
6. Sarah said, “God has made me laugh. Everyone who hears about this will laugh with me.”