11 You are to undergo circumcision, and it will be the sign of the covenant between me and you.

Read Genesis 17:11 Using Other Translations

And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.
You shall be circumcised in the flesh of your foreskins, and it shall be a sign of the covenant between me and you.
You must cut off the flesh of your foreskin as a sign of the covenant between me and you.