“[T]he gift of the discerning of spirits is poured out upon presiding officials in God’s kingdom; they have it given to them to discern ALL gifts and ALL spirits, LEST ANY COME AMONG THE SAINTS AND PRACTICE DECEPTION.
“There is no perfect operation of the power of discernment without revelation. Thereby even ‘the thoughts and intents of the heart’ are made known … where the Saints are concerned … the Lord expects them to discern, not only between the righteous and the wicked, but between false and true philosophies, educational theories, sciences, political concepts, and social schemes.”
Bruce R. McConkie, Mormon Doctrine (Salt Lake City, UT: Bookcraft, Inc., 1958 edition), 183. EMPHASIS ADDED.