live by the sword, die by the sword
Definition from Wiktionary, the free dictionary
- Then Jesus said to him: “Return your sword to its place, for all those who take the sword will perish by the sword."
- One who uses violence can expect a violent response; it is better to try to use peaceful means wherever possible.
- (figuratively) One can expect dire outcomes from any vice; used to convey poetic justice.
one who uses violence can expect a violent response