Genesis 17:9

9 Then God said to Abraham, “Your responsibility is to obey the terms of the covenant. You and all your descendants have this continual responsibility.

Genesis 17:9 Meaning and Commentary

Genesis 17:9

And God said unto Abraham, thou shalt keep my covenant
therefore
Observe the sign or token of it, circumcision, in the manner after related:

thou, and thy seed after thee, in their generations;
in successive ages until the Messiah come, the end of the law for righteousness.

Genesis 17:9 In-Context

7 “I will confirm my covenant with you and your descendants after you, from generation to generation. This is the everlasting covenant: I will always be your God and the God of your descendants after you.
8 And I will give the entire land of Canaan, where you now live as a foreigner, to you and your descendants. It will be their possession forever, and I will be their God.”
9 Then God said to Abraham, “Your responsibility is to obey the terms of the covenant. You and all your descendants have this continual responsibility.
10 This is the covenant that you and your descendants must keep: Each male among you must be circumcised.
11 You must cut off the flesh of your foreskin as a sign of the covenant between me and you.