“To some it is given by the Holy Ghost to know that Jesus Christ is the Son of God, and that he was crucified for the sins of the world.
“To others it is given to believe on their words, that they also might have eternal life if they continue faithful” (vv. 13–14; see also John 20:29).
Those who have the gift to know have an obvious duty to bear their witness so that those who have the gift to believe on their words might also have eternal life.
(April 2008 General Conference)