“No, it's your wife Sarah who is going to have a son for you!” God replied. “You are to call him Isaac. I will keep my agreement with him and his descendants as an eternal agreement.
But God told Abraham, “Don't feel bad about the boy and the slave woman. Do whatever Sarah tells you, because it's through Isaac that your descendants will be counted.
God told him, “Go with your son, your only son, the one you love, to the land of Moriah and sacrifice him there as a burnt offering on one of the mountains that I'll tell you about.”
God also gave Abraham the agreement regarding circumcision, and so when Isaac was born, Abraham circumcised him on the eighth day. Isaac was the father of Jacob, and Jacob the father of the twelve patriarchs.
