The Last Judgment is not an act of overthrowing, the judgment of the soul at the time of its separation from the body, but rather to effect a union with the transformed, risen body with which the soul will continue to live forever. After the separation, the soul is conscious and consequently, feels, understands, and in general exercises all the energies of the soul (Revelation 6:9-10, 7:15; 1 Peter 3: 19; Hebrews 12:23; Luke 16:27-28). The word "sleep", by which death is characterized, does not refer to the soul, but to the body. In Matthew 27:52, we read that many Saints who had fallen asleep, were raised. The Last Judgment will take place on the second coming of Jesus Christ, a strong belief of the Church recorded in THE CREED that "He (Jesus Christ) shall come again with glory to judge the quick and the dead". The time of the second coming of Jesus Christ is not known and, according to Revelation, cannot be conjectured by any means.
