Reading the commentaries on Revelation chapter 9 will make you dizzy. They all feel compelled to find historical figures to plug into this chapter. Since they all have different ones, the reader finds it hopeless. I tend to think that the visions are more timeless than specific. The spiritual war with Satan and his forces will always be with us.
The book showers comfort on the Saints of John’s day and the Christians, Jews and Romans are backdrops. Yet, the overall theme is much larger, encompassing the entire spectrum of spiritual existence. We must be careful not to become lost in the morass of imagination when we study Revelation.
The locusts are the power of Satan and those who do his will. They bring havoc to the world but they are limited in their power and scope. Thank the Lord that He is always with us (Hebrews 13:5) and has prepared an eternal place of comfort for us (John 14:1-6)!