Genesis 21:14-19

14So Abraham rose early in the morning and took bread and a skin of water and gave it to Hagar, putting it on her shoulder, along with the child, and sent her away. And she departed and wandered in the wilderness of Beersheba.

15When the water in the skin was gone, she put the child under one of the bushes.

16Then she went and sat down opposite him a good way off, about the distance of a bowshot, for she said, "Let me not look on the death of the child." And as she sat opposite him, she lifted up her voice and wept.

17And God heard the voice of the boy, and the angel of God called to Hagar from heaven and said to her, "What troubles you, Hagar? Fear not, for God has heard the voice of the boy where he is.

18Up! Lift up the boy, and hold him fast with your hand, for I will make him into a great nation."

19Then God opened her eyes, and she saw a well of water. And she went and filled the skin with water and gave the boy a drink.