This was taken from the Ensign and more people need to read it
https://www.lds.org/ensign/2017/04/the- ... n?lang=eng
The war that began in heaven continues to this day. In fact, the battle is heating up as the Saints prepare for the return of the Savior.
In his classic talk “Beware of Pride,” President Ezra Taft Benson (1899–1994) taught that Lucifer “wished to be honored above all others” and that “his prideful desire was to dethrone God.”2 You have heard too that Satan wanted to destroy man’s agency, but that was not the only reason he fell out of favor. He was cast out of heaven for rebellion against the Father and the Son (see D&C 76:25; Moses 4:3).