Jamieson, Fausset and Brown on Genesis 19:12-13

12-13. Hast thou here any besides? ... we will destroy this place--Apostolic authority has declared Lot was "a righteous man" (2Pe 2:8), at bottom good, though he contented himself with lamenting the sins that he saw, instead of acting on his own convictions, and withdrawing himself and family from such a sink of corruption. But favor was shown him: and even his bad relatives had, for his sake, an offer of deliverance, which was ridiculed and spurned (2Pe 3:4).