Salvation cannot come without revelation; it is in vain for anyone to minister without it. No man is a minister of Jesus Christ without being a Prophet. No man can be a minister of Jesus Christ except he has the testimony of Jesus; and this is the spirit of prophecy.
Teachings of the Prophet Joseph Smith, sel. Joseph Fielding Smith (1976), 160.
No man can receive the Holy Ghost without receiving revelations. The Holy Ghost is a revelator.
Teachings of the Prophet Joseph Smith, sel. Joseph Fielding Smith (1976), 328.
The kingdom of God was set up on the earth from the days of Adam to the present time, whenever there has been a righteous man on earth unto whom God revealed His word and gave power and authority to administer in His name. And where there is a priest of God—a minister who has power and authority from God to administer in the ordinances of the gospel and officiate in the priesthood of God—there is the kingdom of God.
Teachings of the Prophet Joseph Smith, sel. Joseph Fielding Smith (1976), 271.