"...But now, he who has a purse, let him take it, and likewise a sack; and he who has no sword, let him sell his garment and buy one" (Luke 22:36)
Consider that the sword was the finest offensive weapon available to an individual -- the equivalent then of a military rifle today. 1Timothy 5:8 commands us to protect ourselves and our families; Those who refuse have denied the faith and are worse than a nonbeliever.