Genesis 19:26-28

26But his wife, from behind him, 1looked back, and she became a pillar of salt.

27Now Abraham arose early in the morning and went to 2the place where he had stood before the Lord; 28and he looked down toward Sodom and Gomorrah, and toward all the land of the 3valley, and he saw, and behold, 4the smoke of the land ascended like the smoke of a 5furnace.