What does the Bible say about perfection in believers?

The concept of perfection in the context of believers is rooted in their identity in Christ. The scripture states that by one offering, Christ hath perfected forever them that are sanctified (Hebrews 10:14). As such, all who are in Christ are regarded as holy, unblameable, and unreprovable in His sight (Colossians 1:22). This perfection is not based on our deeds but rather on the perfect righteousness of Christ, which is imputed to those who believe. Therefore, when God commands believers to be perfect, it is an affirmation of their position in Christ rather than a call to achieve perfection through their own efforts.