Last week, we looked at the prophecies in the Old Testament indicating that the Messiah would come from the lineage of Abraham. This week, we will eliminate one-half of the lineage of Abraham from the pool of potential ancestors of the Christ as we examine the prophecies that the Messiah would come from the line of Isaac.
For those of you not familiar with the story of Abraham – God appeared to Abraham when he and his wife were very old to tell him that he would have a son and that the whole world would be blessed through that son.
God said, “No, but Sarah your wife shall bear you a son, and you shall call his name Isaac. I will establish my covenant with him as an everlasting covenant for his offspring after him. [Genesis 17:19]
Eventually, Sarah decided that God needed some help with his promise and gave her maidservant Hagar to Abraham to bear him a son. Abraham did indeed have a son by Hagar, and he named the child Ishmael.
Thirteen years later, God again appeared to Abraham to tell him that Sarah would bear him a son, and God would establish his covenant through that son:
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 21:12]
God is clear that it would be through Isaac, and not through Ishmael, that he would fulfill the promises made to Abraham. Later, God appeared to Isaac to confirm to him what he had already told his father Abraham:
Now there was a famine in the land, besides the former famine that was in the days of Abraham. And Isaac went to Gerar to Abimelech king of the Philistines. And the LORD appeared to him and said, “Do not go down to Egypt; dwell in the land of which I shall tell you. Sojourn in this land, and I will be with you and will bless you, for to you and to your offspring I will give all these lands, and I will establish the oath that I swore to Abraham your father. I will multiply your offspring as the stars of heaven and will give to your offspring all these lands. And in your offspring all the nations of the earth shall be blessed, because Abraham obeyed my voice and kept my charge, my commandments, my statutes, and my laws.” [Genesis 26:1-5]



