4. And Abraham circumcised his son Isaac, being eight days old, as God had commanded him.
5. And Abraham was a hundred years old when his son Isaac was born to him.
6. And Sarah said, God has made me laugh: all that hear will laugh with me.
7. And she said, Who would have said to Abraham, Sarah will suckle children? For I have borne him a son in his old age.
8. And the child grew, and was weaned. And Abraham made a great feast on the day that Isaac was weaned.
9. And Sarah saw the son of Hagar the Egyptian, whom she had borne to Abraham, mocking.
10. And she said to Abraham, Cast out this handmaid and her son; for the son of this handmaid shall not inherit with my son--with Isaac.
11. And the thing was very grievous in Abraham's sight because of his son.
12. And God said to Abraham, Let it not be grievous in thy sight because of the lad and because of thy handmaid: in all that Sarah hath said to thee hearken to her voice, for in Isaac shall a seed be called to thee.
13. But also the son of the handmaid will I make a nation, because he is thy seed.