“This Is the Light of Christ”
Doctrine and Covenants 88:5–13
5 Which glory is that of the church of the Firstborn, even of God, the holiest of all, through Jesus Christ his Son—
6 He that ascended up on high, as also he descended below all things, in that he comprehended all things, that he might be in all and through all things, the light of truth;
7 Which truth shineth. This is the light of Christ. As also he is in the sun, and the light of the sun, and the power thereof by which it was made.
8 As also he is in the moon, and is the light of the moon, and the power thereof by which it was made;
9 As also the light of the stars, and the power thereof by which they were made;
10 And the earth also, and the power thereof, even the earth upon which you stand.
11 And the light which shineth, which giveth you light, is through him who enlighteneth your eyes, which is the same light that quickeneth your understandings;
12 Which light proceedeth forth from the presence of God to fill the immensity of space—
13 The light which is in all things, which giveth life to all things, which is the law by which all things are governed, even the power of God who sitteth upon his throne, who is in the bosom of eternity, who is in the midst of all things.
Elder Richard G. Scott said:
“The Light of Christ is that divine power or influence that emanates from God through Jesus Christ. It gives light and life to all things. It prompts all rational individuals throughout the earth to distinguish truth from error, right from wrong. It activates your conscience [see Moroni 7:16]. Its influence can be weakened through transgression and addiction and restored through proper repentance. The Light of Christ is not a person. It is a power and influence that comes from God and when followed can lead a person to qualify for the guidance and inspiration of the Holy Ghost [see John 1:9; D&C 84:46–47].”
(“Peace of Conscience and Peace of Mind,” Ensign or Liahona, Nov. 2004, 15.)