Parallel
Revelation 11:7
Nestle 1904 Greek New Testament · Berean Standard Bible
Καὶ ὅταν τελέσωσιν τὴν μαρτυρίαν αὐτῶν τὸ θηρίον τὸ ἀναβαῖνον ἐκ τῆς ἀβύσσου ποιήσει μετ’ αὐτῶν πόλεμον καὶ νικήσει αὐτοὺς καὶ ἀποκτενεῖ αὐτούς
When the two witnesses have finished their testimony, the beast that comes up from the Abyss will wage war with them, and will overpower and kill them.