They were considered a splinter group of the Zealots, and were called Sicarii because they hid small daggers called sicae in their cloaks. Like silent, stealthy assassins, they would blend in with the crowd then in a split-second strike of a snake, they would whip out their sicae to attack Romans, and disappear as a wisp of smoke.
Hebrews: Excursus Into Exodus, Part 1
This third directive is so important, the remainder of the chapter rests on it. At the very end of the passage, though, the writer made some startling conclusions which we may find unsettling.
