Genesis 17:9-11

New Life Version

⁹ Then God said to Abraham, “You must keep My agreement, you and your children after you for all time. ¹⁰ This is My agreement between Me and you and your children after you, which you must obey: Every man among you must have this religious act done. ¹¹ In this religious act the skin is cut off from the end of your sex part. This will be the special act of the agreement between Me and you.