Revelation 16:13-16 New King James Version (NKJV)

¹³ And I saw three unclean spirits like frogs coming out of the mouth of the dragon, out of the mouth of the beast, and out of the mouth of the false prophet. ¹⁴ For they are spirits of demons, performing signs, which go out to the kings ^[a]of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.

¹⁵ “Behold, I am coming as a thief. Blessed is he who watches, and keeps his garments, lest he walk naked and they see his shame.”

¹⁶ And they gathered them together to the place called in Hebrew, ^[b]Armageddon.