Do ye not know that the saints shall judge the world? and if the world shall be judged by you, are ye unworthy to judge the smallest matters” (1 Corinthians 6:2)?
“Then I saw thrones, and Jesus and the redeemed saints sat upon them; and the saints reigned as kings and priests unto God, and the wicked dead were judged, and their acts were compared with the statute book, the word of God, and they were judged according to the deeds done in the body. Jesus, in union with the saints, meted out to the wicked the portion they must suffer, according to their works; and it was written in the book of death, and set off against their names. Satan and his angels were also judged by Jesus and the saints. Satan’s punishment was to be far greater than that of those whom he had deceived. It so far exceeded their punishment that it could not be compared with theirs. After all those whom he had deceived had perished, Satan was to still live and suffer on much longer.” Spiritual Gifts, vol. 1, 212, 213.
“After the saints are changed to immortality and caught up together with Jesus, after they receive their harps, their robes, and their crowns, and enter the city, Jesus and the saints sit in judgment. The books are opened—the book of life and the book of death. The book of life contains the good deeds of the saints; and the book of death contains the evil deeds of the wicked. These books are compared with the statute book, the Bible, and according to that men are judged. The saints, in unison with Jesus, pass their judgment upon the wicked dead. ‘Behold ye,’ said the angel, ‘the saints, in unison with Jesus, sit in judgment, and mete out to the wicked according to the deeds done in the body, and that which they must receive at the execution of the judgment is set off against their names.’ This, I saw, was the work of the saints with Jesus through the one thousand years in the Holy City before it descends to the earth.” Early Writings, 52, 53.