Genesis 21
Young's Literal Translation
1And Jehovah hath looked after Sarah as He hath said, and Jehovah doth to Sarah as He hath spoken;
2and Sarah conceiveth, and beareth a son to Abraham, to his old age, at the appointed time that God hath spoken of with him;
3and Abraham calleth the name of his son who is born to him, whom Sarah hath born to him — Isaac;
4and Abraham circumciseth Isaac his son, [being] a son of eight days, as God hath commanded him.
5And Abraham [is] a son of a hundred years in Isaac his son being born to him,
6and Sarah saith, 'God hath made laughter for me; every one who is hearing laugheth for me.'
7She saith also, 'Who hath said to Abraham, Sarah hath suckled sons, that I have born a son for his old age?'
8And the lad groweth, and is weaned, and Abraham maketh a great banquet in the day of Isaac's being weaned;
9and Sarah seeth the son of Hagar the Egyptian, whom she hath borne to Abraham, mocking,
10and she saith to Abraham, 'Cast out this handmaid and her son; for the son of this handmaid hath no possession with my son — with Isaac.'
11And the thing is very wrong in the eyes of Abraham, for his son's sake;
12and God saith unto Abraham, 'Let it not be wrong in thine eyes because of the youth, and because of thy handmaid: all that Sarah saith unto thee — hearken to her voice, for in Isaac is a seed called to thee.
13As to the son of the handmaid also, for a nation I set him, because he [is] thy seed.'