live by the sword, die by the sword
Definition from Wiktionary, the free dictionary
- Then said Jesus unto him, Put up again thy sword into his place: for all they that take the sword shall perish with 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 a sense that poetic justice is inevitable.
one who uses violence can expect a violent response