In those times, swords were the equivalent of handguns. In reality a sword can be a far more deadly weapon than a handgun.
Jesus actually instructed his followers to carry weapons.
Then Jesus asked them, "When I sent you without purse, bag or sandals, did you lack anything?" "Nothing," they answered. He said to them, "But now if you have a purse, take it, and also a bag; and if you don't have a sword, sell your cloak and buy one. It is written: `And he was numbered with the transgressors' ; and I tell you that this must be fulfilled in me. Yes, what is written about me is reaching its fulfillment." The disciples said, "See, Lord, here are two swords." "That is enough," he replied. (Luke 22:35-38, NIV)
And one of the deciples of Jesus used a sword to cut off the ear of a high priest's servant during Jesus' arrest.
Then Simon Peter, who had a sword, drew it and struck the high priest's servant, cutting off his right ear. (The servant's name was Malchus.) John 18:10 (NIV)
Sword of Saint PeterThe Sword of Saint Peter (Polish: Miecz świętego Piotra) is allegedly the sword with which the Apostle Peter cut off the ear of the high priest's servant at the time of Jesus' arrest in Gethsemane.
The sword is wide-tipped, similar in shape to a dussack or machete. It currently resides in the Poznań Archdiocesan Museum.
An exact copy of the sword, made by Bogdan Puchalski, is displayed on the wall of the Poznań Archcathedral Basilica.
Sword in Archdiocesan Museum
The copy of St. Peter's Sword displayed in Poznań Archcathedral***snip***
Description
The blade was made from a single piece of iron with an added small cross-guard
Total length: 70.2-centimetre (27.6 in), it was probably 1-centimetre (0.4 in) or 2-centimetre (0.8 in) longer, but the tip of the sword was destroyed by corrosion
Maximal width, at the tip: 9.4-centimetre (3.7 in)
There is a hole 10.3-centimetre (4.1 in) from the end of the hilt, which is 0.4-centimetre (0.2 in) in diameter
http://en.wikipedia.org/wiki/Sword_of_Saint_Peter