Jehovah's Witnesses have developed their own unique eschatology, involving the Second Coming of Jesus Christ and the start of the Last Days. Witnesses believe that the Holy Bible is the word of God and his means of communicating with us. They believe that Bible prophesy has always been precisely fulfilled in the past. Therefore they also believe that future prophesy will also come exactly true. Witnesses believe that the term last days refers to the concluding time period leading up a divinely appointed execution that marks the end of a system of things.

Scriptures at Matt. 24:3-14 and Luke 17:26-30 have a minor fulfillment involving the time period before the end of the Jewish system of things in 70 C.E. and major fulfillment involving the time period before God cleanses the earth of Satan's wicked system of things.

Witnesses believe that the last days began in 1914 when Jehovah God installed Jesus as the King of God's Kingdom. His first action is described in Rev. 12:12 where Jesus cleanses heaven and casts Satan to the earth. Conditions on earth would then deteriorate to an all time low, culminating in war, pestilence, and earthquakes. Witnesses believe that history proved this date true with the start of World War I in 1914 and the worst global epidemic to date in the Spanish Influenza in 1918.

In the future, Witnesses believe that God will cleanse the earth of all wickedness and Satan will be bound for 1,000 years. During this time period, people will be resurrected to life on earth and given a chance to learn about God (Jehovah) and live under the the invisible rule of Jesus Christ. They believe Jesus sacrificed his earthly life, thus his return would not be of flesh and blood as a human, but instead would be an exercise of power over the earth. They feel biblical prophesy shows there will be no more death or sickness and people will live in peace and harmony, just as God originally purposed for Adam and Eve in the Garden of Eden.