The Tribulation is a future time period when the Lord will accomplish at least two aspects of His plan: 1) He will complete His discipline of the nation Israel (Daniel 9:24), and 2) He will judge the unbelieving, godless inhabitants of the earth (Revelation 6 – 18). The length of the Tribulation is seven years. This is determined by an understanding of the seventy weeks of Daniel. The Great Tribulation is the last half of the Tribulation period, three and one-half years in length. It is distinguished from the tribulation period because the Beast, or Antichrist, will be revealed, and the wrath of God will greatly intensify during this time. Thus, it is important at this point to emphasize that the Tribulation and the Great Tribulation are not synonymous terms. Within eschatology (the study of future things), the Tribulation refers to the full seven-year period while the term “Great” Tribulation refers to the second half of the Tribulation.