President Spencer W. Kimball, recorded in 1974, as he described the future of missionary work:

“I believe that the Lord is anxious to put into our hands inventions of which we laymen have hardly had a glimpse. …

“With the Lord providing these miracles of communication, and with the increased efforts and devotion of our missionaries and all of us, and all others who are ‘sent,’ surely the divine injunction will come to pass: ‘For, verily, the sound must go forth from this place into all the world, and unto the uttermost parts of the earth—the gospel must be preached unto every creature’ (D&C 58:64)” (“When the World Will Be Converted,” Ensign, Oct. 1974, 10–11).