1 Chronicles 1:28
The sons of Abraham: Isaac and Ishmael.
Genesis 16:11-16
And the Angel of Jehovah said to her, Behold, thou art with child, and shalt bear a son, and shalt call his name Ishmael, because Jehovah hath hearkened to thy affliction.
Genesis 17:19-21
And God said, Sarah thy wife shall indeed bear thee a son; and thou shalt call his name Isaac; and I will establish my covenant with him, for an everlasting covenant for his seed after him.
Genesis 21:2-5
And Sarah conceived, and bore Abraham a son in his old age, at the appointed time of which God had spoken to him.
Genesis 21:9-10
And Sarah saw the son of Hagar the Egyptian, whom she had borne to Abraham, mocking.
Genesis 21:12
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.