Read Galatians 6:13 Using Other Translations
For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.
For even those who are circumcised do not themselves keep the law, but they desire to have you circumcised that they may boast in your flesh.
And even those who advocate circumcision don’t keep the whole law themselves. They only want you to be circumcised so they can boast about it and claim you as their disciples.