And the Lord visited Sarah as he had said, and the Lord did unto Sarah as
he had spoken. For Sarah conceived, and bare Abraham a son in his old
age, at the set time of which God had spoken to him. And Abraham called
the name of his son that was born unto him, whom Sarah bare to him,
Isaac. And Abraham circumcised his son Isaac, being eight days old, as
God had commanded him. And Abraham was an hundred years old, when his son
Isaac was born unto him.
And Sarah said, God hath made me to laugh, so that all that hear will
laugh with me. And she said, Who would have said unto Abraham, that Sarah
should have given children suck? for I have born him a son in his old
age. And the child grew, and was weaned: and Abraham made a great feast
the same day that Isaac was weaned.
And Sarah, saw the son of Hagar, the Egyptian, which she had born unto
Abraham, mocking. Wherefore she said unto Abraham, Cast out this
bondwoman and her son; for the son of this, bondwoman shall not be heir
with my son, even with Isaac.
And the thing was very grievous in Abraham's sight because of his son.
And God said unto Abraham, Let it not be grievous in thy sight because of
the lad, and because of thy bondwoman; in all that Sarah hath said unto
thee, hearken unto her voice; for in Isaac shall thy seed be called. And
also of the son of the bondwoman will I make a nation, because he is thy
seed.
And Abraham rose up early in the morning, and took bread, and a bottle of
water, and gave it unto Hagar, putting it on her shoulder, and the child,
and sent her away: and she departed, and wandered in the wilderness of
Beer-sheba.--Genesis xxi, 1-14.