My brethren, I pray, and ask you to join in that prayer, that while I speak we will enjoy the Spirit of Christ. If we don't enjoy it, we won't enjoy these remarks, because my topic is "The Light of Christ." There are three phases of the light of Christ that I want to mention.

The first one is the light which enlighteneth every man that cometh into the world;

The second phase is the gift of the Holy Ghost;

And the third is the more sure word of prophecy." - http://lds.org/ensign/1977/05/the-light-of-christ?lang=eng

Now, concerning the third phase of our theme, "the more sure word of prophecy" (D&C 131:5), which is obtained by making one's "calling and election sure" (2 Pet. 1:10), the Prophet Joseph said...

That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.

And the glory which thou gavest me I have given them; that they may be one, even as we are one:

I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me." - John 17:21-23