Philippians 3:1-5

Further, my brothers and sisters, rejoice in the Lord! It is no trouble for me to write the same things to you again, and it is a safeguard for you. Watch out for those dogs, those evildoers, those mutilators of the flesh. For it is we who are the circumcision, we who serve God by his Spirit, who boast in Christ Jesus, and who put no confidence in the flesh— (Philippians 3:1-3 NIV)

"same things" are safeguards. I love the suggestion that repeating important truths is the way to protecting your heart. Having no confidence in our flesh meaning that the Spirit is who brings us zeal for life and strength for what we are called to do.

All that we can do even if it's perfect , will not be what we need- only our faith in God will be our righteousness on the day of Jesus Christ.