NET
10 If anyone is meant for captivity, into captivity he will go. If anyone is to be killed by the sword, then by the sword he must be killed. This requires steadfast endurance and faith from the saints.
Darby
10 If any one [leads] into captivity, he goes into captivity. If any one shall kill with [the] sword, he must with [the] sword be killed. Here is the endurance and the faith of the saints.
KJV
10 He that leadeth into captivity shall go into captivity: he that killeth with the sword must be killed with the sword. Here is the patience and the faith of the saints.