He that leads into captivity shall go into captivity: he that kills with the sword must be killed with the sword. Here is the patience and the faith of the saints.
All Commentaries on Revelation 13:10 Go To Revelation 13
Bede
AD 735
sword: He who now persecutes the Church with carnal or even spiritual death, him the Lord Jesus "will slay with the breath of His mouth, and will destroy with the brightness of His coming."