In an October 1989 general conference talk, Elder Neal A. Maxwell observed:
"Damage to ourselves is sufficient reason to resist murmuring, but another obvious danger is its contagiousness.
"Even faithful father Lehi, for one brief moment, got caught up in the contagion of murmuring. (See 1 Ne. 16:20)
"Similarly, when Moses lapsed, very briefly, it was under exasperating pressure from rebels. (See Num. 20:7–12)
"No one knows how to work a crowd better than the adversary."
"Murmur Not," Ensign, Nov. 1989