the LORD remembered what he had told Sarah, and he did as he had promised. So Sarah had a son, and when the child grew up, Abraham made a great feast on the day that he was weaned. But Sarah saw the son of Hagar the egyptian and of Abraham playing with her son Isaac. And she said to Abraham, "Drive out this slave girl and her son, for the son of this slave girl shall not be heir with my son Isaac." This request was very displeasing to Abraham because the boy was his son. But the LORD said to Abraham, "Do not be displeased because of the boy and because of your slave girl. Listen to all that Sarah says to you, for Isaac only and his children shall bear your name. But I will also make of the son of the slave girl a great nation, because he is your son."
Then Abraham rose early in the morning and took bread and a skin of water and gave it to Hagar; and he put the boy upon her shoulder and sent her away. So she set out and wandered in the desert of Beersheba. When the water in the skin was gone, she left the child under one of the desert shrubs and went a short distance away and sat down opposite him, for she said, "Let me not see the child die."
While she sat there, the boy began to cry; and the LORD heard the cry of the boy, and said, "What troubles you, Hagar? Fear not, for the LORD has heard the cry of the boy. Rise, lift him up, and hold him fast by the hand, for I will make him a great nation." And the LORD opened her eyes and she saw a well of water. Then she went and filled the skin with water and gave the boy a drink.
And the LORD cared for the boy; and when he grew up, he lived in the wilderness of Paran and became a bowman. And his mother secured a wife for him from Egypt.