1 Chronicles 1:28
The sons of Abraham, Isaac and Ishmael.
Genesis 16:11-16
And the messenger of Yahweh said to her, Behold thee! with child, and about bearing a son - and thou shalt call his name Ishmael for Yahweh hath hearkened unto thy humiliation.
Genesis 17:19-21
And God said - Truly, Sarah thy wife, is about to bear thee a son, and thou shalt call his name, Isaac, - and I will establish my covenant with him as an age-abiding covenant, to his seed after him.
Genesis 21:2-5
So, Sarah, conceived and bare, to Abraham, a son, for his old age, at the set time, of which God had spoken with him.
Genesis 21:9-10
And Sarah saw the son of Hagar the Egyptian woman whom she had borne to Abraham laughing!
Genesis 21:12
And God said unto Abraham Let it not be grievous in thine eyes concerning the boy and concerning thy bondwoman, In all that Sarah may say unto thee, hearken to her voice, - For in Isaac, shall there be called to thee - a seed.