Genesis 17:19-21

New Catholic Bible

¹⁹ But God said, “No, but Sarah, your wife, shall bear you a son, and you shall name him Isaac. I will establish my covenant with him as an eternal covenant, that I will be his God and the God of his descendants after him. ²⁰ As for Ishmael, I have heard you. Behold, I will bless him and make him fruitful and very, very numerous. Twelve princes shall come from him and I will make him a great nation. ²¹ But I will establish my covenant with Isaac. Sarah shall give birth to him by this time next year.”