Why is the concept of salvation being 'finished' important for Christians?

Understanding that salvation is 'finished' is vital for Christians as it removes the anxiety of works-based righteousness. Christ's completed work means that believers are fully accepted by God, not based on their own merits but solely through faith in Christ. This completion of salvation liberates believers from guilt and empowers them to live in light of God’s grace, recognizing that they have been fully redeemed and wholly sanctified in Christ. It assures them that their hope rests securely on what has already been accomplished, rather than on their own ever-failing efforts.