Ken Cook posted something about the length of blades in relation to the dimensions of the arm, and now I can't find it.
I will probably duplicate something here.
For purposes of my own I recently did a search of the bible for the shortest blade still referred to as a sword by the people of the times.
Two swords stood out.
The first, a sword carried under the clothes of Joab, and which he used to assassinate Amoz.
We don't know the exact dimensions of this blade except that Joab used it to disembowel Amoz while in an embrace, meaning at very close range.
This suggests more of what we would call a heavy dagger, and yet contemporary reporters called it a sword.
The second, a sword made and carried by Ehud, a Benjamite Judge (Chieftain), in order to assassinate Eglon, King of the Moabites.
We know more about this sword.
We know it measured one cubit in length, had two edges, and that he had to smuggle it past bodyguards under his clothing.
The cubit has two measures based upon the human body.
The less commonly used term, the
gomed, equals three quarters of the traditional cubit.
The gomed derives from the distance between the inside of the elbow and the inside of the curled middle finger.
The gomed has meaning to the proportions of the bow and arrow as made for individual archers.
Today, it corresponds to the
pull of a rifle, or the distance from trigger to butt plate.
The US Military considers 13.5" as the average pull, and that makes one gomed.
A sword of 13.5" total length hardly fits anyone's idea of a sword.
Nonetheless, I commissioned Gene Osborn to make such a sword for me, to my design.
We thought Ehud might have had to use his sword to defend himself, or fight past the bodyguards, and so it would need to have the balance and heft to not only hack but to parry a larger (obviously, not much larger) blade.
And so, we designed and made an uncommonly heavy dagger with a grip and blade geometry which makes it possible to easily chop down a small tree.
The other measurement, a true cubit of the times, equaled 18".
The definition of this cubit comes from the distance from the outside of the elbow, as rested on a table, to the tip of the outstretched middle finger.
This distance also exactly matches, in most people, the distance from the center of rotation of the hip to the center of rotation of the knee.
A weapon of this length strapped to the outside of the thigh would allow the bearer full flexure of both the hip and knee without "printing" through the clothes.
I have designed and made a weapon 18" in length which has sufficient weight and appropriate balance and geometry to both chop down a large tree and parry a large sword.
I would describe this blade as reminiscent of the Keltic leaf blades but with a little less fineness of point and more weight forward.
The grip definitely favors hacking over thrusting, but not to the detriment of thrusting, by creating a relationship between the middle and ring fingers, the wrist and the "sweet spot" of the blade similar to that of the ancient Kopis and the modern Smatchet.
One has every confidence with this blade of its ability to parry or block the blow of the largest of swords.
It lacks only reach.
I have taken the long way of getting to my real point:
A sword, as distinquished from a heavy dagger, has the proportions, by weight and dimension, to effectively parry a hacking or percussion weapon such as another sword, a battle axe or a mace.
That doesn't mean it has to parry well, or particularly effectively, only that it can if pressed to do so.
For example, the rapier can parry a larger, heavier sword, such as a saber; perhaps not as well as another saber, but it can do an adequate job while setting up the thrust for which its designers intended it.
As another example, the katana can surely parry any other sword carried on a daily basis.
I do not think the men who carried the katana meant it as a main battle sword or to parry a main battle sword.
Rather, I think they designed it for the lightning strike to flesh which would end a fight instantly.
Nonetheless, a katana will meet another sword edge to edge in the heat of combat, and one of the swords will survive (horrible thought).
I make this distinction between the katana and the main battle sword because I do not think a professional warrior would expose his finest sword to the damage of battle.
Rather, I think he would use a fully functional, heavier and less decorated sword in battle with the understanding that the sword had less value than his life; a value relationship not necessarily so with the katana.
Therefore, I think of a sword as a pointed and edged weapon which can thrust, slash (whack or hack) and parry, although not necessarily all three to equal extent.
A sword can favor one or two of these attributes over another, but it should retain the ability to do all three to some degree.
If not, it becomes something else, such as a machete, kukri or heavy dagger.
In response to the original topic, then, I say
length.
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Luke 22:36, John 18:6-11,
Freedom
If one takes care of the means, the end will take care of itself.