The phrase "where civil blood makes civil hands unclean" comes from the Prologue of William Shakespeare's Romeo and Juliet. It describes the city of Verona, where the long-standing feud between two noble families-the Montagues and the Capulets-leads to violent conflict among its own citizens. The word "civil" here has multiple meanings: it refers to ordinary citizens (civilians) as opposed to soldiers, and it also relates to the idea of a civil war or internal strife within the same community. The phrase means that the bloodshed caused by this feud stains the hands of Verona's citizens, both literally with blood and figuratively by corrupting their civility and peace
. In summary, the line highlights the tragic consequences of internal conflict in a society that should be peaceful and orderly, emphasizing how violence makes even the "civil" (civilized) people complicit and stained by bloodshed
