Parallel
Revelation 11:5
Nestle 1904 Greek New Testament · Berean Standard Bible
καὶ εἴ τις αὐτοὺς θέλει ἀδικῆσαι πῦρ ἐκπορεύεται ἐκ τοῦ στόματος αὐτῶν καὶ κατεσθίει τοὺς ἐχθροὺς αὐτῶν καὶ εἴ τις θελήσῃ αὐτοὺς ἀδικῆσαι οὕτως δεῖ αὐτὸν ἀποκτανθῆναι
If anyone wants to harm them, fire proceeds from their mouths and devours their enemies. In this way, anyone who wants to harm them must be killed.