Hey Feinstein, the Cross Is A Sword!

Luk 22:36

Then said he unto them, But now, he that hath a purse, let him take [it], and likewise [his] scrip: and he that hath no sword, let him sell his garment, and buy one.

http://www.blueletterbible.org/search/translationResults.cfm?Criteria=buy+AND+sword&t=KJV

Put the sword in the vernacular of the day.