18 For the day cometh that the Lord shall utter his voice out of heaven; the heavens shall shake and the earth shall tremble, and the trump of God shall sound both long and loud, and shall say to the sleeping nations: Ye saints arise and live; ye sinners stay and sleep until I shall call again.
19 Wherefore gird up your loins lest ye be found among the wicked.
20 Lift up your voices and spare not. Call upon the nations to repent, both old and young, both bond and free, saying: Prepare yourselves for the great day of the Lord;
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Doctrine and Covenants | Section 43:17-20 (Bold emphasis added.)