Philippians 3:1-9 (ESV)
Righteousness Through Faith in Christ
3:1 Finally, my brothers,  rejoice in the Lord. To write the same things to you is no trouble to me and is safe for you.
2 Look out for the dogs, look out for the evildoers, look out for those who mutilate the flesh. 3 For we are the circumcision, who worship by the Spirit of God  and glory in Christ Jesus and put no confidence in the flesh— 4 though I myself have reason for confidence in the flesh also. If anyone else thinks he has reason for confidence in the flesh, I have more: 5 circumcised on the eighth day, of the people of Israel, of the tribe of Benjamin, a Hebrew of Hebrews; as to the law, a Pharisee; 6 as to zeal, a persecutor of the church; as to righteousness under the law,  blameless. 7 But whatever gain I had, I counted as loss for the sake of Christ. 8 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 rubbish, in order that I may gain Christ 9 and be found in him, not having a righteousness of my own that comes from the law, but that which comes through faith in Christ, the righteousness from God that depends on faith—