¹⁹ And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.

⁹ For this is the word of promise, At this time will I come, and Sarah shall have a son.

²³ But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise.