Philippians 3:3-10, 12-14

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, and be found in him, not having a righteousness of mine own, even that which is of the law, but that which is through faith in Christ, the righteousness which is from God by faith: that I may know him, and the power of his resurrection, and the fellowship of his sufferings, becoming conformed unto his death

Not that I have already obtained, or am already made perfect: but I press on, if so be that I may lay hold on that for which also I was laid hold on by Christ Jesus. Brethren, I count not myself yet to have laid hold: but one thing I do, forgetting the things which are behind, and stretching forward to the things which are before, I press on toward the goal unto the prize of the high calling of God in Christ Jesus.