In this message, after describing the Rapture in 1 Thessalonians 4, the Apostle Paul turns in chapter 5 to the Day of the Lord, the period of judgment that comes after the Church is caught up to meet the Lord in the air. Paul teaches that this coming Tribulation will arrive suddenly and unexpectedly—“as a thief in the night”—bringing devastating and escalating judgments on those left behind, who will be deceived by a false cry of “peace and safety.” Paul then contrasts the unbelieving world with believers, assuring the Church that we will not enter the Tribulation because we will already be in heaven.