MeAm Lo'ez

42:25 G-d poured out His wrath and the fierceness of war upon the people of Yehudah (Judah) when Sancheriv captured Samaria, in order that they learn a lesson.  When they did not, Sancheriv went on to capture the Judean cities.  They still did not learn, so G-d then "burned" the people of Yerushalayim themselves - Sancheriv besieged the City.  But none of these things had any long-lasting effect because they paid no serious attention.