In The Church of Jesus Christ of Latter-day Saints full-time missionaries are not the only ones who are supposed to help spread the gospel. Members are also asked to watch for missionary opportunities. This idea is often summed up by the saying, "every member a missionary," coined by President David O. McKay. Missionary work has always been a priority within the Church, and members are familiar with scriptures that emphasize the importance of missionary work, such as Mark 16:15-1: "And he said unto them, Go ye into all the world, and preach the gospel to every creature." Doctrine and Covenants 58:64 says, "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, with signs following t