The First Woe of the seven year tribulation period has to do with the demonic legions which are presently held prisoner in the bottomless pit called “the Abyss”. The demonic world is quite aware of this prison hold and when Jesus walked on this earth in His humanity the demonic legions feared greatly and begged Jesus NOT to send them to this prison hold before this day which will be at hand quite shortly (Matt. 8:16, 28-32, Mark. 1:23-27, 5:1-14, James 2:19). The demonic hosts - who presently are detained in this bottomless abyiss - were placed there by Almighty God for their gross transgressions and heavenly rebellion against Almighty God and His ETERNAL sovereignty. They were placed there after the Noaic flood for their excessive part in leading men to global rebellion against their Creator and His natural laws (Gen. 6, Isa. 14:12-17, Ezek. 28:12-19, 2 Peter 2:4, Jude 1:6).
These insane supernatural beings - which transcend the realms of time and space - are exponentially more powerful and intelligent than man. These godless beings in their psychotic rage and violence will seek to – once again - tyrannically dominate and plague man, preparing all of humanity for the Third Woe which is to come. These demonic legions fully comprehend the hour in which they now occupy and know that their time is dreadfully short. These released demonic hordes from the abyss prison hold – as insane and delusional as they are – know quite well of the impending judgment and doom that awaits them in the Lake of Fire FOREVER and EVER! It is their sole intention to discredit Almighty God's Word and promises and to torment and take as many humans with them to their ETERNAL abode as possible (Matt. 8:29, 25: 41, Mark 1:24, 5:7, Luke 4:34).
Remember, by this time – the seven Seal Judgments and the first four Trumpet Judgments have passed (Rev. 6-8). Multitudes of millions (i.e.,1.5 billion) of the earth’s inhabitants have been slain by global war, pestilence and famine, not to mention the global environmental devastation that has ravished 1/3rd of the earth's natural resources, elements, sea creatures, shipping commerce, celestial lights. It is now - after all of this global devastation - that millions of enraged demonic hordes are released from their prison hold of the abyss and will now commence terrorizing and torturing countless millions of the surviving masses of unsaved mankind for five months.