Revelation 12:7

Καὶ ἐγένετο πόλεμος ἐν τῷ οὐρανῷ· ὁ Μιχαὴλ καὶ οἱ ἄγγελοι αὐτοῦ πολεμῆσαι μετὰ τοῦ δράκοντος· καὶ ὁ δράκων ἐπολέμησεν, καὶ οἱ ἄγγελοι αὐτοῦ,

Kai egeneto polemos en tō oyranō· o Michaēl kai oi aggeloi aytoy polemēsai meta toy drakontos· kai o drakōn epolemēsen, kai oi aggeloi aytoy,

King James Version (KJV)

And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,

Modern English

Then war broke out in heaven. Michael and his angels fought against the dragon, and the dragon and his angels fought back.