No person is to be ordained to any office in this church … without the vote of that church, D&C 20:65.
No man has a legal right to this office … except he be a literal descendant and the firstborn of Aaron, D&C 68:18.
a high priest … has authority to officiate in all the lesser offices, D&C 68:19 (107:17).
offices of elder and bishop are necessary, D&C 84:29.
offices of teacher and deacon are necessary, D&C 84:30.
let every man stand in his own office, D&C 84:109.
preside over … the office of an elder, D&C 107:60 (107:89).
preside over … the office of a priest, D&C 107:61.
preside over … the office of a teacher, D&C 107:62.
duty of a president over the office of a deacon, D&C 107:85.
they may hold as high and responsible offices in the church, D&C 107:98.
let every man learn … to act in the office in which he is appointed, D&C 107:99.