Armies of the Tribes of Israel converged upon the tribe of Benjamin in the aftermath of the "Concubine at Givah" incident, in a war which nearly brought about the extinction of the Benjaminites (as related in the Book of Judges, chapters 19-2). The event occurred during the judgeship of Othniel ben Knaz, who led the people of Israel in the years 2533-2573 from creation (1228-1188 BCE). Because Shabbat has nothing of its own. Your food on Shabbat is only that which you prepared before Shabbat. Your light on Shabbat is only that which you lit before Shabbat. To the Shabbat Queen you must come prepared.