D&C 63

 The Lord warned - 

"I, the Lord, am angry with the wicked; I am holding my Spirit from the inhabitants of the earth.

33 I have sworn in my wrath, and decreed wars upon the face of the earth, and the wicked shall slay the wicked, and fear shall come upon every man;

34 And the saints also shall hardly escape; nevertheless, I, the Lord, am with them, and will come down in heaven from the presence of my Father and consume the wicked with unquenchable fire."  (Doctrine and Covenants 63:32–34)

Concerning the saints hardly escaping, the Prophet Joseph Smith said - 

“It is a false idea that the Saints will escape all the judgments, whilst the wicked suffer; for all flesh is subject to suffer, and ‘the righteous shall hardly escape;’ still many of the Saints will escape, for the just shall live by faith; yet many of the righteous shall fall a prey to disease, to pestilence, etc., by reason of the weakness of the flesh, and yet be saved in the Kingdom of God. So that it is an unhallowed principle to say that such and such have transgressed because they have been preyed upon by disease or death, for all flesh is subject to death; and the Savior has said, ‘Judge not, lest ye be judged.’” (History of the Church, Vol. 4, page 11.)