Remember Lot's Wife by Jeffrey R. Holland
It Would Seem The That The Leaders Of The Church Of JESUS CHRIST Of Latter-Day Saints, Are Warning The General Membership Of What Lies Just Ahead-
Lot’s Wife Was Disobedient — She Looked Back
The story of Lot details the evil of Sodom and Gomorrah more specifically. It was not just ordinary men who visited Lot, but three angelic messengers who came to lead Lot and his family from the wicked cities to safety (JST Gen 19:1). However, the sacred character of the visitors did not protect them against the perverted lust of the men who gathered at Lot's door. Even Lot's pleading to spare his virgin daughters to their evil desires did not deter the citizens of Sodom (19:9-15), described in the Old Testament as "both old and young, all the people from every quarter" (Gen 19:4). Only when the angels struck them blind did they stop, and then only because "they wearied themselves to find the door" (v 11). Any possibility of repentant souls in this crowd? Once Lot and his wife and daughters were removed, leaving the unbelieving sons-in-law behind, the inhabitants of Sodom and Gomorrah reaped the consequences of their choice of lifestyle — death. And in this case, through fire and brimstone from heaven.
As Lot and his family entered Zoar, a rain of fire and brimstone descended on Sodom and Gomorrah. But Lot's wife failed to heed the final warning of the angels. She looked back and "became a pillar of salt."
The south end of the Dead Sea contains sulfur and bitumen, which may have exploded through layers of rock salt. An earthquake could have released naphtha and ignited the conflagration. Lingering behind, Lot's wife may have been overcome by sulfurous vapors and literally encrusted with salt. How it happened is not as important as why it happened. Lot's wife as described in that single sentence has come to symbolize all who are so taken up with material things that they cannot avoid destruction. Yet nothing in the account suggests that she was wicked or associated with the wickedness of Sodom. She may have looked back because of the pleasures she had left behind, or because she hoped that her sons-in-law had changed their minds and were following them. Whatever the reason, being warned, she failed to heed the instructions. She was almost saved, but being almost saved was not enough.
With similar words, Jesus warned the followers of his day of the approaching destruction of Jerusalem. He instructed them to flee to the hills when the danger came, telling them not to pause to take anything with them. He added the stern warning, "Remember Lot's wife." (See Luke 17:32.)
 Monte S. Nyman and Charles D. Tate, Jr., eds., Third Nephi 9-30: This Is My Gospel, p. 80-81.
 Jerrie W. Hurd, Our Sisters in the Latter-day Scriptures, p. 137.