Genesis 17:13-15

New Century Version

¹³ Circumcise every baby boy whether he is born in your family or bought as a slave. Your bodies will be marked to show that you are part of my agreement that lasts forever. ¹⁴ Any male who is not circumcised will be cut off from his people, because he has broken my agreement.”

Isaac—the Promised Son

¹⁵ God said to Abraham, “I will change the name of Sarai,^[a] your wife, to Sarah.^[b]