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 descendants after him.
Sojourn in this land, and I will be with you, and will bless you; for unto you, and unto your descendants, I will give all these countries, and I will perform the oath which I swore unto Abraham your father;
Through faith also Sara herself received strength to conceive, and was delivered of a child when she was past age, because she judged him faithful who had promised.
And the bow shall be in the cloud; and I will look upon it, that I may remember the everlasting covenant between God and every living creature of all flesh that is upon the earth.
And I will establish my covenant between me and you and your descendants after you in their generations for an everlasting covenant, to be a God unto you, and to your descendants after you.
And I will bless her, and give you a son also of her: yea, I will bless her, and she shall be a mother of nations; kings of people shall come from her.
And the angel of the LORD said unto her, Behold, you are with child, and shall bear a son, and shall call his name Ishmael; because the LORD has heard your affliction.