Genesis 17:13-15

International Standard Version

¹³ The servant born in your house or the one purchased with money is to be circumcised. My covenant is to remain in your flesh as an eternal covenant. ¹⁴ Any uncircumcised male who does not have the foreskin of his flesh circumcised on the eighth day^[a] after his birth^[b] is to be eliminated from his people because he has broken my covenant.”

Sarah’s Pregnancy Foretold

¹⁵ God told Abraham, “As for Sarai your wife, you are not to call her Sarai any longer,^[c] because her name is to be Sarah.^[d]