Psalm 73:18; refer in this text to Morm. 1:18
“When we consider the condition of the Latter-day Saints, and see how many there are who seem to have their eyes fixed upon the things of this world, things that are not lasting, but that perish in the handling, and how anxious they are to obtain them, how do you think I feel about it? We see many of the Elders of Israel desirous of becoming wealthy, and they adopt any course that they think will bring them riches, which to me is as unwise as anything can be—to see men of wisdom, men that seem to have an understanding of the world and of the things of God, searching after minerals throughout these mountains… . These treasures that are in the earth are carefully watched, they can be removed from place to place according to the good pleasure of Him who made them and owns them. He has his messengers at his service, and it is just as easy for an angel to remove the minerals from any part of one of these mountains to another, as it is for you and me to walk up and down this hall… . People do not know it, but I know there is a seal set upon the treasures of earth; men are allowed to go so far and no farther. I have known places where there were treasures in abundance; but could men get them? No. You can read in the Book of Mormon of the ancient Nephites holding their treasures, and of their becoming slippery; so that after they had privately hid their money, on going to the place again, lo and behold it was not there, but was somewhere else, but they knew not where. The people do not understand this; I wish they did, for they would then do as I do, pay attention to the legitimate business that God has given them to perform.” (Brigham Young, Journal of Discourses 19:36-39)