Philippians 3:2-6

Be on the watch against dogs, against the workers of evil, against those of the circumcision: For we are the circumcision, who give worship to God and have glory in Jesus Christ, and have no faith in the flesh: Even though I myself might have faith in the flesh: if any other man has reason to have faith in the flesh, I have more: Being given circumcision on the eighth day, of the nation of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; in relation to the law, a Pharisee: In bitter hate I was cruel to the church; I kept all the righteousness of the law to the last detail.