The great controversy between Christ and Satan, that has been carried forward for nearly six thousand years, is soon to close; and the wicked one redoubles his efforts to defeat the work of Christ in man's behalf and to fasten souls in his snares. To hold the people in darkness and impenitence till the Savior's mediation is ended, and there is no longer a sacrifice for sin, is the object which he seeks to accomplish. {The Great Controversy, 518.1} Satan's work of ruin is forever ended. For six thousand years he has wrought his will, filling the earth with woe and causing grief throughout the universe. The whole creation has groaned and travailed together in pain. Now God's creatures are forever delivered from his presence and temptations. {The Great Controversy, 673.2}