His opponent is clearly a bit unnerved by the situation; it's fairly obvious that this was not how it was supposed to go, in his mind. Whether someone put him up to it, or it was his own idea is hard to tell, but regardless, he draws his weapon and takes a ready stance opposite Caiaphas, an aggressive stance, looking like he might be intending to finish the fight quickly; while it would be less honorable than drawing it out, the win would still be a win.