The “circumcision” party are the enemies of your faith and freedom

^2-3 Be on your guard against these curs, these wicked workmen, these would-be mutilators of your bodies! We are, remember, truly circumcised when we worship God by the Spirit, when we find our joy in Christ Jesus and put no confidence in what we are in the flesh.

I was even more of a Jew than these Jews, yet knowing Christ has changed my whole life

^4-6 If it were right to have such confidence, I could certainly have it, and if any of these men thinks he has grounds for such confidence I can assure him I have more. I was born a true Jew, I was circumcised on the eighth day, I was a member of the tribe of Benjamin, I was in fact a full-blooded Jew. As far as keeping the Law is concerned I was a Pharisee, and you can judge my enthusiasm for the Jewish faith by my active persecution of the Church. As far as the Law’s righteousness is concerned, I don’t think anyone could have found fault with me.