Whether they are born in your household or purchased, they must be circumcised. My covenant in your flesh will be an everlasting covenant.
KJV
He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
ASV
He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.