And God said, Sarah your wife shall bear you a son indeed; and you shall call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his descendents after him.
And God said to Abraham, Let it not be distressing in your sight because of the lad, and because of your servant woman; in all that Sarah has said to you, listen to her voice; for in Isaac shall your descendents be called.
And he said, Take now your son, your only son Isaac, whom you love, and go into the land of Moriah; and offer him there for a burnt offering on one of the mountains which I will tell you of.
And he gave him the covenant of circumcision: and so Abraham begot Isaac, and circumcised him the eighth day; and Isaac begot Jacob; and Jacob begot the twelve patriarchs.
And I took your father Abraham from the other side of the flood, and led him throughout all the land of Canaan, and multiplied his descendents, and gave him Isaac.