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.
Textus Receptus (TR) - Revelation 11:7 >Καὶ ὅταν τελέσωσι τὴν μαρτυρίαν αὐτῶν, τὸ θηρίον τὸ ἀναβαῖνον ἐκ τῆς ἀβύσσου ποιήσει πόλεμον μετ᾿ αὐτῶν, καὶ νικήσει αὐτούς, καὶ ἀποκτενεῖ αὐτούς.