Genesis

⁵And Abraham was a hundred years old, when his son Isaac was born unto him. ⁶And Sarah said, God hath made me to laugh. Every one that heareth will laugh with me. ⁷And she said, Who would have said unto Abraham, that Sarah should give children suck? For I have borne him a son in his old age. ⁸And the child grew, and was weaned. And Abraham made a great feast on the day that Isaac was weaned. ⁹And Sarah saw the son of Hagar the Egyptian, whom she had borne unto Abraham, mocking. ¹⁰Wherefore she said unto Abraham, Cast out this handmaid and her son. For the son of this handmaid shall not be heir with my son, even with Isaac. ¹¹And the thing was very grievous in Abraham’s sight on account of his son.