fall on one's sword

The phrase "fall on one’s sword" is an idiomatic expression that means to accept responsibility or blame for a failure, mistake, or wrongdoing, often by voluntarily sacrificing one's career, reputation, or personal interests for the greater good or to protect others. It comes from the act of a Roman soldier who, rather than being captured or killed by enemies, would choose to commit suicide by falling onto his own sword. In a modern context, it refers to taking personal accountability for a situation and facing the consequences, even if it results in significant harm to oneself.