1 Chronicles 1:28
The sons of Abraham; Isaac, and Ishmael.
Genesis 16:11-16
And the angel of the LORD said unto her, Behold, you are with child, and shall bear a son, and shall call his name Ishmael; because the LORD has heard your affliction.
Genesis 17:19-21
And God said, Sarah your wife shall bear you a son indeed; and you shall call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his descendants after him.
Genesis 21:2-5
For Sarah conceived, and bore Abraham a son in his old age, at the set 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 unto Abraham, mocking.
Genesis 21:12
And God said unto Abraham, Let it not be displeasing in your sight because of the lad, and because of your bondwoman; in all that Sarah has said unto you, listen unto her voice; for in Isaac shall your descendants be called.