“The Testimony of Jesus Is the Spirit of Prophecy”
Revelation 19:10
10 And I fell at his feet to worship him. And he said unto me, See thou do it not: I am thy fellowservant, and of thy brethren that have the testimony of Jesus: worship God: for the testimony of Jesus is the spirit of prophecy.
Elder Dieter F. Uchtdorf said:
“We cannot depend on the testimonies of other people. We need to know for ourselves. . . .
“The source of this sure knowledge and firm conviction is divine revelation, ‘for the testimony of Jesus is the spirit of prophecy’ (Revelation 19:10).
“We receive this testimony when the Holy Spirit speaks to the spirit within us. We will receive a calm and unwavering certainty that will be the source of our testimony and conviction irrespective of our culture, race, language, or socioeconomic background. These promptings of the Spirit, rather than human logic alone, will be the true foundation upon which our testimony will be built.
“The core of this testimony will always be the faith in and the knowledge of Jesus Christ and His divine mission.”
(“The Power of a Personal Testimony,” Ensign or Liahona, Nov. 2006, 38.)