D&C 43

In our day, the Lord has given us the charge to -

"Lift up your voices and spare not. Call upon the nations to repent, both old and young, both bond and free, saying: Prepare yourselves for the great day of the Lord..." (Doctrine and Covenants Section 43:20)

For those who do not heed the call of repentance and preparation, the Lord warns -

"For if I, who am a man, do lift up my voice and call upon you to repent, and ye hate me, what will ye say when the day cometh when the thunders shall utter their voices from the ends of the earth, speaking to the ears of all that live, saying—Repent, and prepare for the great day of the Lord?
22 Yea, and again, when the lightnings shall streak forth from the east unto the west, and shall utter forth their voices unto all that live, and make the ears of all tingle that hear, saying these words—Repent ye, for the great day of the Lord is come?" (Doctrine and Covenants Section 43:21 - 22)

Does the world really want to wait until the Lord Himself will raise His voice with thunders and lightnings? The seems to provide a sequence of warning as He says again -

"...Hearken, O ye nations of the earth, and hear the words of that God who made you.
24 O, ye nations of the earth, how often would I have gathered you together as a hen gathereth her chickens under her wings, but ye would not!
25 How oft have I called upon you by the mouth of my servants, and by the ministering of angels, and by mine own voice, and by the voice of thunderings, and by the voice of lightnings, and by the voice of tempests, and by the voice of earthquakes, and great hailstorms, and by the voice of famines and pestilences of every kind, and by the great sound of a trump, and by the voice of judgment, and by the voice of mercy all the day long, and by the voice of glory and honor and the riches of eternal life, and would have saved you with an everlasting salvation, but ye would not!" (Doctrine and Covenants Section 43:23 - 25)

This suggests that this sequence of warnings will happen for -

" Behold, the day has come, when the cup of the wrath of mine indignation is full." (Doctrine and Covenants Section 43:26)

Is there not significant evidence that the voice of the Lord has began to take place. President Brigham Young said many years ago -

“Do you think there is calamity abroad now among the people? Not much. All we have yet heard and all we have experienced is scarcely a preface to the sermon that is going to be preached. When the testimony of the elders ceases to be given, and the Lord says to them, ‘Come home; I will now preach my own sermons to the nations of the earth,’ all you now know can scarcely be called a preface to the sermon that will be preached with fire and sword, tempests, earthquakes, hail, rain, thunders and lightnings, and fearful destruction. . . . You will hear of magnificent cities, now idolized by the people, sinking in the earth, entombing the inhabitants. The sea will heave itself beyond its bounds, engulphing mighty cities. Famine will spread over the nations.” (In Journal of Discourses, 8:123; see also D&C 88:88–92.)

I am confident that these promises are and will be fulfilled if we do not repent and prepare ourselves as commanded.