Reference

Genesis 19:17; 24-26 (KJV)

17 And it came to pass, when they had brought them forth abroad, that he said, Escape for thy life; look not behind thee, neither stay thou in all the plain; escape to the mountain, lest thou be consumed.

24 Then the Lord rained upon Sodom and upon Gomorrah brimstone and fire from the Lord out of heaven;

25 And he overthrew those cities, and all the plain, and all the inhabitants of the cities, and that which grew upon the ground.

26 But his wife looked back from behind him, and she became a pillar of salt.