Studied together, the Old Testament book of Daniel and the New Testament book of Revelation unlock the mystery of Scripture’s longest time prophecy in Daniel 8:14. Daniel wrote that the prophecy extends over a period of 2,300 prophetic days (where one day = one year in symbolic Bible prophecy). The time prophecy begins in 457 BC, and Revelation tells us that the culminating event of the prophecy is judgment! JTL4 2.1