Then Avraham fell on his face, and laughed, and said in his heart, *Will a child be born to him who is one hundred years old? Will Sarah, who is ninety years old, give birth?*
God said, *No, but Sarah, your wife, will bear you a son. You shall call his name Yitzchak. I will establish my covenant with him for an everlasting covenant for his seed after him.
Behold, you have driven me out this day from the surface of the ground. I will be hidden from your face, and I will be a fugitive and a wanderer in the earth. It will happen that whoever finds me will kill me.*