Joseph Fielding Smith

“[The] great and dreadful day can be no other time but the coming of Jesus Christ to establish his kingdom in power among the righteous on the earth and to cleanse the earth from all iniquity. It will not be a day of fear and to cause dread in the hearts of the righteous, but it will be a great day of fear and terror to the ungodly” (Teachings of Presidents of the Church: Joseph Fielding Smith, p. 325).