you can be sure that such revelations are not from the Lord

 “Our Heavenly Father’s house is a house of order, where his servants are commanded to ‘act in the office in which [they are] appointed’ (D&C 107:99). This principle applies to revelation. Only the president of the Church receives revelation to guide the entire Church. Only the stake president receives revelation for the special guidance of the stake. The person who receives revelation for the ward is the bishop. For a family, it is the priesthood leadership of the family. Leaders receive revelation for their own stewardships. Individuals can receive revelation to guide their own lives. But when one person purports to receive revelation for another person outside his or her own stewardship—such as a Church member who claims to have revelation to guide the entire Church or a person who claims to have a revelation to guide another person over whom he or she has no presiding authority according to the order of the Church—you can be sure that such revelations are not from the Lord” (“Revelation” [Brigham Young University devotional, Sept. 29, 1981], Dallin H. Oaks).