The angel had said, "Look not behind thee." But the treasure of Lot's wife was in Sodom. She did not heed the warning of the angel. She loved her beautiful home and the riches of Sodom more than she loved God. She proved unworthy of the deliverance that the angels of God had brought to them, and she turned and looked back to see if God really meant what he said. That very moment she became a pillar of salt, dead and white like a marble statue.
When Lot and his daughters were far away, the Lord rained a horrible tempest of fire and brimstone upon the cities of the plain, and they were utterly destroyed. The very ground where they stood is now covered by the Dead Sea.
Thus God showed His hatred of their awful wickedness. They loved sin, and were not thankful that God had paid the great price of the life of His only Son in order to save them from doing wrong, if they would only ask Him for help to do right. Holding on to sin they perished with it, as many will perish in the last great "lake of fire" "prepared for the devil and his angels." That fire is not being prepared for man; heaven is being fitted up for him. Oh that all would accept it!
Jesus said, "In my Father's house are many mansions; I go to prepare a place for you." Which place are we preparing ourselves for? We are to make the choice.