Joel Martin: Sodom and Gomorrah & Reprobation

Joel Martin writes at:  http://livingtext.wordpress.com/2012/03/24/sodom-and-gomorrah/.  We are increasingly aware of the subject of divine hardening and judicial blinding, e.g. reprobation. 

Sodom and Gomorrah
Philo says that the smoke of Sodom and Gomorrah was still rising in the first century:

And a most evident proof of this is to be found in what is seen to this day: for the smoke which