The two Pauline epistles to the Thessalonians are traditionally called the “Eschatology Letters.” While most of the two letters are about how to live the Christian life correctly, the context is in an intense eschatological expectation in the first century of the Christian era. The “end-time fever” lasted for four centuries during 200 B.C.—A.D.200. How Paul taught the Thessalonians is very relevant for the Christians today, who have seen more signs of the End Time than all the generations before.