Revelation 8:13-9:11 Then I looked, and I heard an eagle crying with a loud voice as it flew directly overhead, "Woe, woe, woe to those who dwell on the earth, at the blasts of the other trumpets that the three angels are about to blow!"
9:1 And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit. 2 He opened the shaft of the bottomless pit, and from the shaft rose smoke like the smoke of a great furnace, and the sun and the air were darkened with the smoke from the shaft. 3 Then from the smoke came locusts on the earth, and they were given power like the power of scorpions of the earth. 4 They were told not to harm the grass of the earth or any green plant or any tree, but only those people who do not have the seal of God on their foreheads. 5 They were allowed to torment them for five months, but not to kill them, and their torment was like the torment of a scorpion when it stings someone. 6 And in those days people will seek death and will not find it. They will long to die, but death will flee from them. 7 In appearance the locusts were like horses prepared for battle: on their heads were what looked like crowns of gold; their faces were like human faces, 8 their hair like women's hair, and their teeth like lions' teeth; 9 they had breastplates like breastplates of iron, and the noise of their wings was like the noise of many chariots with horses rushing into battle. 10 They have tails and stings like scorpions, and their power to hurt people for five months is in their tails. 11 They have as king over them the angel of the bottomless pit. His name in Hebrew is Abaddon, and in Greek he is called Apollyon.
God’s judgments upon mankind are increasingly severe in order to promote repentance from sins and belief in the Gospel. An Old Testament example of this is found in Leviticus 26:14-33. God sought to bring the nation of Israel to repentance by increasingly severe judgments. It is in God’s character to use His judgments to bring people He loves to repentance and belief in the gospel.
As the fifth angel blew his trumpet, we see a star falling from heaven to earth. The context reveals this star is an angelic messenger from the Lord, sent to do His will. His will is to release a demonic force held in a prison called the bottomless pit. The demons and their mission on earth are described by John. The demons are empowered to torture all the unsealed humans on the earth. Remember, the believers in Christ are sealed (Revelation 7:3) to be protected from God’s judgments upon the unbelievers. For five months the unbelievers will be tormented by the demons to the point of making them want to die. The leader of the demons (fallen angels) is Abaddon or Apollyon, either meaning “destruction” or “destroyer”. The believers are not affected by this judgment on earth and will stand out among all the unbelievers. The vegetation of the earth has grown back from the first judgment and is not to be harmed by the demonic army. The believers still have their primary calling to make disciples and will be calling people to repent and believe the gospel. They will all be “preachers of righteousness” just as Noah was in the days preceding God’s judgment of the world wide flood (2 Peter 2:5).