Genesis 19:31

31. The firstborn said unto the younger The infamous measures which this elder daughter proposed, and in which she was readily followed by her younger sister, shows what demoralizing power the city life of Sodom had exerted over them . They became familiar with “the filthy conversation of the wicked,” (2 Peter 2:7;) their sisters had married, and perhaps they themselves had been betrothed to men of Sodom, (see on Genesis 19:14-15,) and possibly their mother was a woman of Sodom, (note on 13, 14;) what could be expected of daughters grown up amid such surroundings! Even though Lot held the faith of Abraham, and reproved his wicked neighbours, his worldly-mindedness was strong, and his parental discipline as feeble, perhaps, as Eli’s. 1 Samuel 2:22-25.

Not a man in the earth That is, in the land, or country around them . We are not to understand by this, as some of the ancient interpreters, that Lot’s daughters believed the whole human race to have been destroyed, but that they had no hope of marriage with any of the men of the country to which they had fled .