Selected Teachings on
The Holy Ghost Operates through the Light of Christ

Joseph Fielding Smith
The Holy Ghost as a personage of Spirit can no more be omnipresent in person than can the Father or the Son, but by his intelligence, his knowledge, his power and influence, over and through the laws of nature, he is and can be omnipresent throughout all the works of God. Thus when it becomes necessary to speak to us, he is able to do so by acting through the other Spirit, that is, through the Light of Christ. (Doctrines of Salvation, vol. 1, p. 40)

Bruce R. McConkie
The Holy Ghost, a personage of Spirit, is a Revelator. Revelation comes by his power. He is broadcasting all truth out into all immensity all the time. And the Spirit of Christ—the light of Christ, the light that proceedeth forth from the presence of God to fill the immensity of space—is the means and agency used for carrying the revealed word to men, for disseminating eternal truth to mortal hearts. (Doctrinal New Testament Commentary, 3: 287, emphasis added)