The Savior meant that the satisfaction which He rendered to the justice of God was finished. The debt was now, to the last farthing, all discharged. The atonement and propitiation were made once and for all and forever—by the one offering made in Jesus’ body on the Tree. There was the cup, Hell was in it, the Savior drank it—not a sip and then a pause—not a draught and then a ceasing. He drained it till there is not a dreg left for any of His people. The great ten-thronged whip of the Law was worn out upon His back. There is no lash left with which to smite one for whom Jesus died. The great cannonade of God’s justice has exhausted all its ammunition—there is nothing left to be hurled against a child of God.
Sheathed is your sword, O Justice! Silenced is your thunder, O Law! There remains nothing now of all the griefs and pains and agonies which chosen sinners ought to have suffered for their sins, for Christ has endured all for His own Beloved and “it is finished.”
—Charles H. Spurgeon, “It Is Finished!” Sermon delivered at Metropolitan Tabernacle, December 1, 1861 (full sermon HERE)