For neither they themselves who are circumcised keep the law; but desire to have you circumcised, that they may glory in your flesh.
Ver. 13. Keep the law] Romans 2:23. Jerome doubteth not to pronounce that man accursed, that saith it is impossible to keep the law. Sed quid visum sit Hieronymo, nihil moramur; nos quid verum sit inquirimus, saith Calvin. But let Jerome hold as he will, we know there is no such thing.
That they may glory in your flesh] That they may pride themselves in the multitude of their followers, and curry favour with the Jews by gaining many proselytes.