Paul encourages the Philippians to rejoice in the Lord and warns them to beware of those who claim righteousness through works of the flesh or Jewish rituals alone. Though Paul formerly had strong Jewish pedigree and righteousness, he considers all of it as rubbish compared to the surpassing worth of knowing Christ. Paul's desire is to know Christ and his power, share in his sufferings, and attain the resurrection, not because of his own works but through faith in Christ alone.