Isaac-Jacob

Isaac is the second of the patriarchs of Israel, the only son of Abraham and Sarah, as well as the father of Esau and Jacob. Although Sarah was past the age of childbearing, God promised Abraham and Sarah that they would have a son, and Isaac was born. Later, to test Abraham's obedience, God commanded Abraham to sacrifice the boy. Abraham made all the preparations for the ritual sacrifice, but God spared Isaac at the last moment.

In the Old and New Testaments, God is called the God of Abraham, Isaac, and Jacob, because with them God's relationship of promise and purpose was fixed for all those who descended from them. Jacob, also called Israel, was a Hebrew patriarch as the grandson of Abraham, the son of Isaac and Rebekah, and also viewed as the traditional ancestor of the people of Israel. Jacob, through an elaborate double deception, managed to obtain his older brother's birthright from their father. After fleeing from his brother Jacob, he took refuge in Mesopotamia where he met his wives Rachel and Rebekah and fathered twelve sons, the twelve tribes of Israel.