2 Peter 2:8

(for that righteous man dwelling among them, in seeing and hearing, vexed his righteous soul from day to day with their lawless deeds):

In view of the rather sordid record of Lot's life in Genesis, some have questioned why such an epithet as "righteous" should be repeatedly applied to him here. However, all human righteousness is relative; and when Lot's life is evaluated in connection with the depraved culture of his day, the true value of it is evident. He was displeased with the wickedness around him; he did not participate in it; he was thoughtful to entertain strangers, thereby entertaining angels unawares, as extolled in Hebrews 13:2; he was accounted righteous by Abraham who, in his great intercession for the doomed cities, evidently included Lot among the ten righteous persons who, he felt, were living there; and when God commanded him to leave Sodom, Lot did not hesitate to obey. It was also at Lot's intercession that Zoar was spared. In view of all these things, Peter's reference to him here is justified.