Thematic Bible: Whose circumcision is made uncircumcision

For circumcision indeed is advantageous, if thou practise the law: but if thou art a transgressor of the law, thy circumcision becomes uncircumcision, If then the uncircumcision observe the righteous judgments of the law, shall not his uncircumcision be accounted for circumcision? And the uncircumcision by nature which fulfilleth the law shall condemn thee, who through the letter and circumcision art a transgressor of the law.