Lot's visitors
And the two angels came to Sodom in the evening; and Lot sat in the gate of Sodom; and Lot saw them, and rose up to meet them; and he fell down on his face to the earth; and he said: 'Behold now, my lords, turn aside, I pray you, into your servant's house, and tarry all night, and wash your feet, and ye shall rise up early, and go on your way.' And they said: 'Nay; but we will abide in the broad place all night.' And he urged them greatly; and they turned in unto him, and entered into his house; and he made them a feast, and did bake unleavened bread, and they did eat.
After supper that night, before bedtime, the men of the city, young and old, gathered around Lot's house demanding that he bring out his two guests that they may "know them" (i.e. rape them). Lot went out, closing the door behind him, and begged them to refrain from so wicked a deed, offering them instead his virgin daughters, to do with as they pleased. The men of Sodom accused Lot of acting as a judge and threatened to do worse to him than they would have done to the "men".
The angels drew Lot back into his house and struck the mob with blindness. The angels then said that God had sent them to destroy the place, telling Lot, "whomsoever thou hast in the city; bring them out of the place". Lot went to the houses of his sons-in-law and warned them to leave the city, but they would not come, imagining that he spoke only in jest.
Lot lingered in the morning, so the angels forced him and his family out of the city, telling them to flee for the hills and not look back. Appreciating the kindness or chesed shown by the angels, but also fearful that the hills would not afford them sufficient protection from the impending destruction, Lot instead asked them if he and his might hide in the safety of a neighboring village. An angel agreed and the village was thenceforth known as Zoar. When God rained fire and brimstone upon Sodom and Gomorrah, Lot's wife looked back at the burning cities of the plain, and she was turned into a pillar of salt in recompense for her folly.
The sun was risen upon the earth when Lot came unto Zoar. Then the LORD caused to rain upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven; and He overthrow those cities, and all the Plain, and all the inhabitants of the cities, and that which grew upon the ground. But his wife looked back from behind him, and she became a pillar of salt. And Abraham got up early in the morning to the place where he had stood before the LORD. And he looked out toward Sodom and Gomorrah, and toward all the land of the Plain, and beheld, and, lo, the smoke of the land went up as the smoke of a furnace.
Instead of fire and brimstone, Josephus has only lightning as the cause of the fire that destroyed Sodom: "God then cast a thunderbolt upon the city, and set it on fire, with its inhabitants; and laid waste the country with the like burning." In The Jewish War, he likewise says that the city was "burnt by lightning".