Isaac
Genesis 17:19-21
19
and God saith, 'Sarah thy wife is certainly bearing a son to thee, and thou hast called his name Isaac, and I have established My covenant with him, for a covenant age-during, to his seed after him.
20
As to Ishmael, I have heard thee; lo, I have blessed him, and made him fruitful, and multiplied him, very exceedingly; twelve princes doth he beget, and I have made him become a great nation;
21
and My covenant I establish with Isaac, whom Sarah doth bear to thee at this appointed time in the next year;'
Genesis 21:2-5
2
and Sarah conceiveth, and beareth a son to Abraham, to his old age, at the appointed time that God hath spoken of with him;
3
and Abraham calleth the name of his son who is born to him, whom Sarah hath born to him -- Isaac;
4
and Abraham circumciseth Isaac his son, [being] a son of eight days, as God hath commanded him.
5
And Abraham [is] a son of a hundred years in Isaac his son being born to him,
Genesis 21:12-5
Ishmael
Genesis 16:11-16
11
and the messenger of Jehovah saith to her, 'Behold thou [art] conceiving, and bearing a son, and hast called his name Ishmael, for Jehovah hath hearkened unto thine affliction;
12
and he is a wild-ass man, his hand against every one, and every one's hand against him -- and before the face of all his brethren he dwelleth.'
13
And she calleth the name of Jehovah who is speaking unto her, 'Thou [art], O God, my beholder;' for she said, 'Even here have I looked behind my beholder?'
14
therefore hath one called the well, 'The well of the Living One, my beholder;' lo, between Kadesh and Bered.
15
And Hagar beareth to Abram a son; and Abram calleth the name of his son, whom Hagar hath borne, Ishmael;
16
and Abram [is] a son of eighty and six years in Hagar's bearing Ishmael to Abram.
Genesis 21:9
and Sarah seeth the son of Hagar the Egyptian, whom she hath borne to Abraham, mocking,
Genesis 21:10
and 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.'