[David O. McKay]
On this day, President Jos[eph]. F. Smith gave instructions on Priesthood as follows:
In ordaining a Deacon, first confer upon him the Aaronic Priesthood, and then ordain him a Deacon in which office in the Aaaronic Priesthood he is to officiate.
In ordaining an Elder, first confer upon him the Melchizedek Priesthood, and then ordain him an Elder in which office he is to exercise this Melchizedek Priesthood.
'The Priesthood is greater than any office in it.' All offices grow out of the Priesthood.
[David O. McKay Diary, as quoted in Minutes of the Apostles of The Church of Jesus Christ of Latter-day Saints, 1910-1951, Privately Published, Salt Lake City, Utah 2010]