Okay after much thought and some research, I offer this:
An article By James M. Arlandson, titled "A Brief Explanation of the Sword in Luke 22:36" summarized below.
Full article is linked here.
http://www.answering-islam.org/Autho...luke_22_36.htm
First, Jesus reminds the disciples of his mission for them before he arrived in Jerusalem (Luke 9:3; 10:1-17). Did they need a purse, a bag, or extra sandals? No, because people were friendlier, and their opposition to him was spread out over three years. Now, however, he is in Jerusalem, and he has undergone the compacted antagonism of religious leaders seeking to trap him with self-incriminating words. When the authorities are not present, they send their spies. The atmosphere is therefore tense, and the two swords—no more than that—represent the tension. Jesus’ mission has shifted to a clear danger, and the disciples must beware. However, he certainly did not intend for his disciples to use the swords, for he is about to tell Peter to put away his sword.
Second, "For I tell you, this scripture must be fulfilled in me: ‘And he was numbered among the lawless’" (Luke 22:37). By far the clearest purpose of the two swords is Jesus’ reference to Isaiah’s prophecy (53:12). He was destined to be arrested like a criminal, put on trial like a criminal, and even crucified like a criminal (but his arrest, trial, and execution were based on false evidence. He did nothing but good.) Yet, he was hung on the cross between two thieves, which is also a fulfillment of Isaiah’s prophecy (Luke 23:32; 39-43). What are criminals known for carrying with them? Weapons, and to be numbered among criminals, Jesus must also have weapons. That is why he said that only two swords would be enough—to fulfill this prophecy. Also, Matthew mentions fulfilling prophecy (26:54). If Peter had kept on physically using the sword to prevent Christ’s arrest, prophecy would not have been accomplished smoothly and without hindrance. Jesus says that he could call on twelve legions of angels to protect him, meaning he is destined by God to die; he was not permitted to stop even the mighty Roman Empire from fulfilling its role (Matt. 26:53). That is why Jesus told Peter to put his sword back in its place (Matt. 26:52). And in Luke he says to Peter after the disciple cut off an ear, "No more of this!" (22:51).
The third and final nonliteral interpretation says that Jesus frequently used physical objects (seeds, lamps, vineyards, coins, lost sheep and so on) to teach nonphysical, universal truths, and the same is possibly true of the two swords. This interpretation of clarification is supported by Matt. 10:34: "Do not suppose that I have come to bring peace to the earth, but a sword." As seen in this article on Matt. 10:34, in context he does not mean a physical sword that cuts up and bloodies the family, but a spiritual and moral one that may divide it up nonphysically. And it is precisely Luke who clarifies Jesus’ meaning of "sword" as nonliteral, in the two parallel passages of Matt. 10:34 and Luke 12:51. If Luke does this in 12:51, then why would he not shift slightly the meaning of "sword" in 22:36-38?