Living by the sword today would translate to mean someone living a life of crime, like the Mafia.
They make their living that way.
Jesus was telling Peter to stop acting like a law breaker.
Nothing about owning or carrying a weapon.
How do we know?
“Put your sword back in its place,” Jesus said to him,
“for all who draw the sword will die by the sword." Mat 26:52
Did you notice?
Peter kept his sword.
Not only that.
Jesus did not tell Peter to get rid of it!
But, Jesus told Peter to KEEP IT!
In Christ .......... GeneZ