The Prophet Joseph Smith taught, "That which is wrong under one circumstance, may be, and often is, right under another. God said, 'Thou shalt not kill;' at another time He said, 'Thou shalt utterly destroy.' This is the principle on which the government of heaven is conducted-by revelation adapted to the circumstances in which the children of the kingdom are placed. Whatever God requires is right, no matter what it is" EX: Plural Marriage