What does 'it is finished' mean for Christians?

The phrase 'it is finished' is deeply significant for Christians as it encapsulates the completion of the promised work of salvation. This declaration signifies that all that God required for the atonement of sin has been accomplished through Christ. It affirms that believers are justified by faith in Him, as He fulfilled all righteousness and paid the penalty for sin. This assurance of salvation is foundational for the Christian faith, as it underscores the belief that nothing else can be added to Christ's sacrifice for salvation. It reassures believers that they can rest in the sufficiency of Christ's work, knowing their acceptance before God is secured in Him alone.