Philippians 3:5-6 NLT

5 I was circumcised when I was eight days old. I am a pure-blooded citizen of Israel and a member of the tribe of Benjamin—a real Hebrew if there ever was one! I was a member of the Pharisees, who demand the strictest obedience to the Jewish law.
6 I was so zealous that I harshly persecuted the church. And as for righteousness, I obeyed the law without fault.