Revelation 16:13-20 (NIV): “I saw three evil spirits that looked like frogs…they go out to the kings of the whole world, to gather them for the battle on the great day of God Almighty…they gathered the kings together to the place that in Hebrew is called Armageddon…then there came flashes of lightning, rumblings, peals of thunder and a severe earthquake. No earthquake like it has ever occurred since man has been on earth, so tremendous was the quake…and the cities of the nations collapsed…and every island fled away, and the mountains could not be found.”
The language of Revelation is highly symbolic. “Armageddon” is understood by some as a final great cataclysmic event that will destroy by literal fire the heavens above and our literal planet earth—together with all remaining unbelievers.