Philippians 3:3-8

for we are the circumcision, who worship by the Spirit of God, and glory in Christ Jesus, and have no confidence in the flesh: though I myself might have confidence even in the flesh: if any other man thinketh to have confidence in the flesh, I yet more: circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; as touching the law, a Pharisee; as touching zeal, persecuting the church; as touching the righteousness which is in the law, found blameless. Howbeit what things were gain to me, these have I counted loss for Christ. Yea verily, and I count all things to be loss for the excellency of the knowledge of Christ Jesus my Lord: for whom I suffered the loss of all things, and do count them but refuse, that I may gain Christ