Genesis 21:10 (KJV)
Wherefore she said to Abraham, Cast out this bondwoman and her son, forr the son of this bondwoman shall not be heir with my son, even with Isaac.
Genesis 21:12
But God said to Abraham, "Be not displeased because of the boy and because of your slave woman. Whatever Sarah says to you, do as she tells you, for through Isaac shall your offspring be named.
Genesis 21:14 (KJV) - 14 And Abraham rose up early in the morning, and took bread, and a bottle of water, and gave it unto Hagar, putting it on her shoulder, and the child, and sent her away: and she departed, and wandered in the wilderness of Beersheba.
Genesis 21:16 (KJV)
And she went and sat her down over against him a good way off, awaiting were a bow shot: for she said, Let me not see the death of the child. And she sat over against him, and lift up her voice and wept.
17 And God heard the voice of the lad; and the angel of God called to Hagar out of heaven, and said unto her, What aileth thee, Hagar? fear not; for God hath heard the voice of the lad where he is.
22 And it came to pass at that time, that Abimelech and Phichol the chief captain of his host spake unto Abraham, saying, God is with thee in all that thou doest:
Genesis 21:23 (KJV) - 23 Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son's son: but according to the kindness that I have done unto thee, thou shalt do unto me, and to the land wherein thou hast sojourned.