Revelation 16:14

14they areεἰσὶνforγὰρspiritsπνεύματαof demonsδαιμονίωνperformingποιοῦνταsignsσημεῖα,whichἃgo forthἐκπορεύεταιtoἐπὶtheτοὺςkingsβασιλεῖςof theτῆςinhabited [world]οἰκουμένηςwholeὅλης,to gather togetherσυναγαγεῖνthemαὐτοὺςuntoεἰςtheτὸνbattleπόλεμονof theτῆςdayἡμέραςτῆςgreatμεγάληςτοῦof GodθεοῦtheτοῦAlmightyπαντοκράτορος—

for they are spirits of demons doing signs that go forth to the kings of the whole world, to gather them together unto the battle of the great day of God the Almighty.