The Doctrine and Covenants, Section 1:12-15
12 Prepare ye, prepare ye for that which is to come, for the Lord is nigh;
13 And the anger of the Lord is kindled, and his sword is bathed in heaven, and it shall fall upon the inhabitants of the earth.
14 And the arm of the Lord shall be revealed; and the day cometh that they who will not hear the voice of the Lord, neither the voice of his servants, neither give heed to the words of the prophets and apostles, shall be cut off from among the people;
15 For they have strayed from mine ordinances, and have broken mine everlasting covenant;
The Doctrine and Covenants, Section 45:44-45
44 And then they shall look for me, and, behold, I will come; and they shall see me in the clouds of heaven, clothed with power and great glory; with all the holy angels; and he that watches not for me shall be cut off.
45 But before the arm of the Lord shall fall, an angel shall sound his trump, and the saints that have slept shall come forth to meet me in the cloud.
The Doctrine and Covenants, Section 45:47-48
47 Then shall the arm of the Lord fall upon the nations.
48 And then shall the Lord set his foot upon this mount, and it shall cleave in twain…