The Thessalonian church believed the tribulation had already begun, and considering the immense persecution they were experiencing, it is not surprising they thought so. However, Paul corrected them, saying, “Let no one deceive you by any means; for that Day will not come unless the falling away comes first, and the man of sin is revealed, the son of perdition” (2 Thessalonians 2:3). The man of sin is also called “the lawless one.” Jesus said, “Because lawlessness will abound, the love of many will grow cold” (Matthew 24:12). While the world has seemingly been increasing in lawlessness, Jesus also said, “And this gospel of the kingdom will be preached in all the world as a witness to all the nations, and then the end will come” (Matthew 24:14).