“When my mind, under the influence of the Spirit of God, is open to comprehend these things I many times marvel and wonder, not only at the world but also at ourselves, that we are not more anxious and diligent in preparing ourselves and our families for the events now at our doors, for though the heavens and the earth pass away, not one jot or tittle of the word of the Lord will go unfulfilled” (Teachings of Presidents of the Church: Wilford Woodruff, p. 250-251).