The Book of Mormon, 1 Nephi 14:15-17
15 And it came to pass that I beheld that the wrath of God was poured out upon that great and abominable church, insomuch that there were wars and rumors of wars among all the nations and kindreds of the earth.
16 And as there began to be wars and rumors of wars among all the nations which belonged to the mother of abominations, the angel spake unto me, saying: Behold, the wrath of God is upon the mother of harlots; and behold, thou seest all these things—
17 And when the day cometh that the wrath of God is poured out upon the mother of harlots, which is the great and abominable church of all the earth, whose founder is the devil, then, at that day, the work of the Father shall commence, in preparing the way for the fulfilling of his covenants, which he hath made to his people who are of the house of Israel.
The Book of Mormon, 1 Nephi 22:13-14
13 And the blood of that great and abominable church, which is the whore of all the earth, shall turn upon their own heads; for they shall war among themselves, and the sword of their own hands shall fall upon their own heads, and they shall be drunken with their own blood.
14 And every nation which shall war against thee, O house of Israel, shall be turned one against another, and they shall fall into the pit which they digged to ensnare the people of the Lord. And all that fight against Zion shall be destroyed, and that great whore, who hath perverted the right ways of the Lord, yea, that great and abominable church, shall tumble to the dust and great shall be the fall of it.
The Doctrine and Covenants, Section 29:21
21 And the great and abominable church, which is the whore of all the earth, shall be cast down by devouring fire, according as it is spoken by the mouth of Ezekiel the prophet, who spoke of these things, which have not come to pass but surely must, as I live, for abominations shall not reign.
The Doctrine and Covenants, Section 88:94-95
94 And another angel shall sound his trump, saying: That great church, the mother of abominations… is ready to be burned. And he shall sound his trump both long and loud, and all nations shall hear it.
95 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;