Live by the sword, die by the sword
"Live by the sword, die by the sword" is a proverb in the form of a parallel phrase, which can be traced back to Aeschylus's Agamemnon, line 1558, "By the sword you did your work, and by the sword you die." Agamemnon was part of the Oresteia, trilogy of tragic dramas by the ancient Greek dramatist and was first performed in 458 BCE