Philippians 3:4-5

although I might be able to put trust in myself. If anyone thinks he has a reason to trust in himself, he should know that I have greater reason for trusting in myself. I was circumcised eight days after my birth. I am from the people of Israel and the tribe of Benjamin. I am a Hebrew, and my parents were Hebrews. I had a strict view of the law, which is why I became a Pharisee.