Though I myself have reason for confidence in the flesh also. If any other man thinks he has reason for confidence in the flesh, I have more: circumcised on the eighth day, of the people of Israel, of the tribe of Benjamin, a Hebrew born of Hebrews; as to the law a Pharisee, as to zeal a persecutor of the church, as to righteousness under the law blameless. But whatever gain I had, I counted as loss for the sake of Christ. Indeed I count everything as loss because of the surpassing worth of knowing Christ Jesus my Lord. For his sake I have suffered the loss of all things, and count them as refuse, in order that I may gain Christ and be found in him, not having a righteousness of my own, based on law, but that which is through faith in Christ, the righteousness from God that depends on faith; that I may know him and the power of his resurrection, and may share his sufferings, becoming like him in his death, that if possible I may attain the resurrection from the dead.
–Philippians 3:4-11