“The Gift of Aaron”
Doctrine and Covenants 8:6–10
6 Now this is not all thy gift; for you have another gift, which is the gift of Aaron; behold, it has told you many things;
7 Behold, there is no other power, save the power of God, that can cause this gift of Aaron to be with you.
8 Therefore, doubt not, for it is the gift of God; and you shall hold it in your hands, and do marvelous works; and no power shall be able to take it away out of your hands, for it is the work of God.
9 And, therefore, whatsoever you shall ask me to tell you by that means, that will I grant unto you, and you shall have knowledge concerning it.
10 Remember that without faith you can do nothing; therefore ask in faith. Trifle not with these things; do not ask for that which you ought not.
President Joseph Fielding Smith wrote:
“There was another gift bestowed upon Oliver Cowdery, and that was the gift of Aaron. Like Aaron with his rod in his hand going before Moses as a spokesman, so Oliver Cowdery was to go before Joseph Smith. Whatever he should ask the Lord by power of this gift should be granted if asked in faith and in wisdom. Oliver was blessed with the great honor of holding the keys of this dispensation with Joseph Smith, and, like Aaron, did become a spokesman on numerous occasions. It was Oliver who delivered the first public discourse in this dispensation [on Sunday, April 11, 1830, at the Peter Whitmer Sr. home in Fayette, New York].”
(Church History and Modern Revelation, 2 vols. , 1:52.)