What is the significance of Christ saying 'It is finished'?

'It is finished' is one of the most profound declarations in the Christian faith, signifying that the entirety of Christ's atoning work was completed at that moment on the cross. This statement underscores the fact that every requirement of the law was met, and the penalty for sin was fully paid. The satisfaction of God’s justice was accomplished, as seen in Hebrews 9:12, where it affirms that Christ obtained eternal redemption through His sacrificial blood. It also emphasizes that salvation is not a process that requires our contributions; it rests entirely on the gracious work of Jesus, creating a sense of security and complete peace for believers.