Why is it significant that Christ said, 'It is finished'?

When Jesus declared, 'It is finished' from the cross (John 19:30), He was affirming that the work of redemption was accomplished. This meant that the penalty for sin had been paid in full, satisfying God's justice and fulfilling the scriptures regarding the Messiah. No additional sacrifices or works are needed for salvation; Christ's atoning sacrifice was perfect and complete. This phrase also provides immense comfort to believers, emphasizing that salvation is entirely based on Christ's finished work rather than human effort. In 2 Timothy 1:9, it states that God 'saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace.' Therefore, understanding 'It is finished' anchors Christians in the truth that their salvation is secure and wholly reliant on Christ.