BY observes that a failure to practice plural marriage will lead to singleness in the celestial kingdom.
Brigham Young, "The Gospel Incorporates All Truth," Journal of Discourses, 26 vols (Liverpool: Joseph F. Smith, 1874): 16:166
And if their husbands are good men, and they are obedient to them, they are entitled to certain blessings, and they will have the privilege of receiving certain blessings that they cannot receive unless they are sealed to men who will be exalted. Now, where a man in this Church says, "I don't want but one wife, I will live my religion with one," he will perhaps be saved in the celestial kingdom; but when he gets there he will not find himself in possession of any wife at all. He has had a talent that he has hid up. He will come forward and say, "Here is that which thou gavest me, I have not wasted it, and here is the one talent," and he will not enjoy it, but it will be taken and given to those who have improved the talents they received, and he will find himself without any wife, and he will remain single for ever and ever. But if the woman is determined not to enter into a plural-marriage, that woman when she comes forth will have the privilege of living in single blessedness through all eternity.