The book of Revelation ties together themes found in several Old Testament prophets, particularly Isaiah, Ezekiel, Daniel, and Zechariah. The symbolism in Revelation cannot be understood correctly in a vacuum, but must be understood based on how the symbols were used by the prophets to portray events that occurred long ago. Revelation constantly drawns on the prophets, Jesus, and the teaching of the Apostles to paint an abstract portrait of the last days. It is filled with warnings and encouragement for Christians in the coming tribulation.
David wrote: "The heavens declare the glory of God; And the firmament shows His handiwork. Day unto day utters speech, And night unto night reveals knowledge. There is no speech nor language Where their voice is not heard" (Psalm 19:1-3). Paul quoted this passage to show that the Gentiles had already heard the Gospel by observing the constellations (Rom. 10:18). God laid out the history of Israel sequentially, in advance, using 12 pictures.
Jesus taught an incredible "Bible Study" on the Emmaus Road and with the eleven when He returned to Jerusalem. "Beginning at Moses and all the Prophets, He expounded to them in all the Scriptures the things concerning Himself" (Luke 24:27). This series of lessons explores those Old Testament Scriptures that speak about Jesus Christ.