Genesis 17:8-10 New English Translation (NET Bible)
8 I will give the whole land of Canaan—the land where you are now residing—to you and your descendants after you as a permanent possession. I will be their God.”
9 Then God said to Abraham, “As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations. 10 This is my requirement that you and your descendants after you must keep: Every male among you must be circumcised.