Galatians 5:2-4

5:2 Listen! I, Paul, tell you that if you let yourselves be circumcised, Christ will be of no benefit to you at all! 5:3 And I testify again to every man who lets himself be circumcised that he is obligated to obey the whole law. 5:4 You who are trying to be declared righteous by the law have been alienated from Christ; you have fallen away from grace!