What does the Bible say about perfection in Christ?

The Bible clearly shows that true perfection is unattainable through our own efforts. In Hebrews 13:20-21, it is stated that God makes us perfect through the blood of the everlasting covenant. Our righteousness comes solely from Christ; it is not based on our works or merit. As stated in Romans 3:23-24, we have all sinned and fall short of God's glory, but we are justified freely by His grace through the redemption that is in Christ Jesus. This underscores that our perfection is a gift from God, not something we can earn by our deeds.