James Manning tells it like it is. While some fuzzy-headed and irrational people want to render America helpless against terror, tyranny and thugs, that isn't what Jesus told us to be like. Not at all.
The sword was the standard armament of a free man or soldier during the time of Jesus ministry. They were expensive, and you'd have to sell a pretty fancy cloak to buy one. Egyptian soldiers had their bronze swords weighed when they were returned to the depot, to make sure the soldiers had not shaved some bronze off! Evidently Jesus meant to convey that such preparation was an important matter. The inimitable Reverend Manning will tell you the rest.