Genesis 21 begins with the birth of Isaac, a promise fulfilled that God had made to Sarah and Abraham..."The Lord did exactly what He promised.. all happened at the time God had said it would". Isaac was then circumcised just as God had commanded. Later, Abraham became distressed when he learned that Sarah wanted to send Hagar and Ishmael away, but the Lord told Abraham it would be all right and Ishmael would still be blessed and made into a great nation also. Abraham , following God's guidance , provided Hagar with food and water and sent her on her way. Hagar became discouraged as she wandered in the wilderness and God spoke to her, comforting her and reminding her that He had not forgotten her and would still make a great nation from Ishmael's descendants. At the conclusion of this chapter, king Abimelech made a treaty with Abraham. Since Abimelech knew that Abraham's God was with him and blessed him in everything, he asked Abraham to always show kindness to him and his country. Abraham settled in the land of the Philistines and remained there for a long time.