Parallel
Revelation 11:5
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And if any man will hurt them, fire proceedeth out of their mouth, and devoureth their enemies: and if any man will hurt them, he must in this manner be killed.
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.