Vision of Pre-Existance Given to Mosiah Hancock and the War in Heaven

 3 And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads. 
 4 And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born. 
 7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels, 
 8 And prevailed not; neither was their place found any more in heaven. 
 9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him. 
 12 Therefore rejoice, [ye] heavens, and ye that dwell in them. Woe to the inhabiters of the earth and of the sea! for the devil is come down unto you, having great wrath, because he knoweth that he hath but a short time. 

            (Rev  12:3-4,7-9,12)

The Revelations of Jesus Christ, Section 53     

SECTION 53.

VISION OF THE PRE-EXISTANCE, GIVEN TO MOSIAH HANCOCK

Mosiah, how I long once again to behold thy face in yonder realms of glory, Yea the glory I had with thee and the friendship I had with thee, my friend, from before the foundation of the world.  For I have striven with the sons of men, as thee, my friend, to turn them from their evil way, and their evil passions as they grovel themselves upon our and our Father's earth for a season, to see if they would be wor­thy of an eternal inheritance.  Yea, but they would not...