Genesis 17:19-21 ▼

19 and God says, “Your wife Sarah is certainly bearing a son to you, and you have called his name Isaac, and I have established My covenant with him, for a perpetual covenant, to his seed after him.

20 As for Ishmael, I have heard you; behold, I have blessed him, and made him fruitful, and multiplied him, very exceedingly; twelve princes does he beget, and I have made him become a great nation;

21 and My covenant I establish with Isaac, whom Sarah does bear to you at this appointed time in the next year”;