Finally the promise of 25 years ago is fulfilled and Isaac is born to Abraham and Sarah. Abraham is 100 years old and Sarah is 90. There is no doubt this is a miracle child come to fulfill the promise of God. But there is trouble in the camp. Sarah is aware that Hagar's son, Ishmael has been mistreating her child, the child of promise, and she will have none of it. She demands that Abraham send him and his mother out of the camp to ensure that he will not share the inheritance with her son. Abraham must now send them out into the wilderness. His heart is breaking as the next morning he sends them out on their own to fend for themselves. God promises Abraham and later Hagar that Ishmael will be the father of a nation. He ends up having 12 sons to match the 12 sons of Isaac.