TD : What is the JW explanation of Luke 22:36 these days?
Luke 22:35-38 says :
He also said to them: “When I sent you out without a money bag and a food pouch and sandals, you did not lack anything, did you?” They said: “No!” Then he said to them: “But now let the one who has a money bag take it, likewise a food pouch, and let the one who has no sword sell his outer garment and buy one. For I tell you that what is written must be accomplished in me, namely, ‘He was counted with lawless ones.’ [Isaiah 53:12] For this is being fulfilled concerning me.” Then they said: “Lord, look! here are two swords.” He said to them: “It is enough.”
In the first instance, then, it was fulfilling prophecy. But when Jesus says "It is enough", what is it enough for? Eleven verses later it says :
When those around him saw what was going to happen, they said: “Lord, should we strike with the sword?” One of them even struck the slave of the high priest, taking off his right ear. But in reply Jesus said: “That is enough.” And he touched the ear and healed him.
The account in John 18:10,11 says :
Then Simon Peter, who had a sword, drew it and struck the slave of the high priest, cutting off his right ear. The name of the slave was Malchus. Jesus, however, said to Peter: “Put the sword into its sheath. Should I not drink the cup that the Father has given me?”
The account in Matthew 26:51,52 says :
But look! one of those with Jesus reached out his hand and drew his sword and struck the slave of the high priest, taking off his ear. Then Jesus said to him: “Return your sword to its place, for all those who take up the sword will perish by the sword."
The explanation in the Watchtower is that Jesus told them to have a sword when they went to the Garden of Gethsemane to demonstrate that he could have resorted to weapons for self-defense if he condoned it, but didn't.