But God said, “On the contrary, Sarah your wife will bear you a son and you must name him Isaac. So I will confirm My covenant with him as an everlasting covenant for his seed after him.
But God said to Abraham, “Do not be displeased about the boy and your slave woman. Whatever Sarah says to you, listen to her voice. For through Isaac shall your seed be called.
Then He said, “Take your son, your only son whom you love —Isaac—and go to the land of Moriah, and offer him there as a burnt offering on one of the mountains about which I will tell you.”
“Then God gave Abraham the covenant of circumcision. So he became the father of Isaac and circumcised him on the eighth day, and so Isaac with Jacob, and Jacob with the twelve patriarchs.