And there shall be silence in heaven for the space of half an hour; and immediately after shall the curtain of heaven be unfolded, as a scroll is unfolded after it is rolled up, and the face of the Lord shall be unveiled;
And so on, until the seventh angel shall sound his trump; and he shall stand forth upon the land and upon the sea, and swear in the name of him who sitteth upon the throne, that there shall be time no longer; and Satan shall be bound, that old serpent, who is called the devil, and shall not be loosed for the space of a thousand years.
And the devil shall gather together his armies; even the hosts of hell, and shall come up to battle against Michael and his armies.
And then cometh the battle of the great God; and the devil and his armies shall be cast away into their own place, that they shall not have power over the saints any more at all. Doctrine & Covenants 88:87&89-95&110&113 114
For behold, and lo, vengeance cometh speedily upon the ungodly as the whirlwind; and who shall escape it?
The Lord’s scourge shall pass over by night and by day, and the report thereof shall vex all people; yea, it shall not be stayed until the Lord come;
For the indignation of the Lord is kindled against their abominations and all their wicked works.
Nevertheless, Zion shall escape if she observe to do all things whatsoever I have commanded her.
But if she observe not to do whatsoever I have commanded her, I will visit her according to all her works, with sore affliction, with pestilence with plague, with sword, with vengeance, with devouring fire. Doctrine & Covenants 97:22-26
Nevertheless, when the wicked rule the people mourn.
And again, the hearts of the Jews unto the prophets, and the prophets unto the Jews; lest I come and smite the whole earth with a curse, and all flesh be consumed before me.
And again I say unto you, if ye observe to do whatsoever I command you, I, the Lord, will turn away all wrath and indignation from you, and the gates of hell shall not prevail against you. Doctrine & Covenants 98:9&17&22
For all those who will not endure chastening, but deny me, cannot be sanctified.
Mine indignation is soon to be poured out without measure upon all nations; and this will I do when the cup of their iniquity is full.
And every corruptible thing, both of man, or of the beasts of the field, or of the fowls of the heavens, or of the fish of the sea, that dwells upon all the face of the earth, shall be consumed;
And in his hot displeasure, and in his fierce anger, in his time, will cut off those wicked, unfaithful, and unjust stewards, and appoint them their portion among hypocrites, and uneblievers;
Even in outer darkness, where there is weeping, and wailing, and gnashing of teeth. Doctrine & Covenants 101:5&11&24&90&91
Verily, verily, I say unto you, darkness covereth the earth, and gross darkness the minds of the people, and all flesh has become corrupt before my face.
Behold, vengeance cometh speedily upon the inhabitants of the earth, a day of wrath, a day of burning, a day of desolation, of weeping, of mourning, and of lamentation; and as a whirlwind it shall come upon all the face of the earth, saith the Lord.
And he that believeth and is baptised shall be saved, and he that believeth not, and is not baptized, shall be damned. Doctrine & Covenants 112:23 &24&29
Behold, at my rebuke I dry up the sea. I make the rivers a wilderness; their fish stink, and die for thirst.
I clothe the heavens with blackness, and make sackcloth their covering.
And this shall ye have of my hand – ye shall lie down in sorrow.
Behold, and lo, there are none to deliver you; for ye obeyed not my voice when I called to you out of the heavens; ye believed not my servants, and when they were sent unto you ye received them not.
Wherefore, they sealed up the testimony and bound up the law, and ye were delivered over unto darkness.
These shall go away into outer darkness, where there is weeping, and wailing, and gnashing of teeth. Doctrine & Covenants 133:68-73
Joseph Smith – Matthew Chapter I:
And except those days should be shortened, there should none of their flesh be saved; but for the elect’s sake, according to the covenant, those days shall be shortened.
Behold I speak for mine elect’s sake; for nation shall rise against nation, and kingdom against kingdom; there shall be famines, and pestilences, and earthquakes, in divers places.
And immediately after the tribulation of those days, the sun shall be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of heaven shall be shaken.
And whoso treasureth up my word, shall not be deceived, for the Son of Man shall come, and he shall send his angels before him with the great sound of a trumpet, and they shall gather together the remainder of his elect from the four winds, from one end of heaven to the other. Joseph Smith’s Matthew Chapter 1:20&29&33&37