My point was that a phrase that might have meanings {A,B,C} when translated might end up having meanings {A,D,E} (keeping its primary intended meaning A but als

My point was that a phrase that might have meanings {A,B,C} when translated might end up having meanings {A,D,E} (keeping its primary intended meaning A but also gaining unintended meanings D and E while losing B and C) or, at best, {A,B} (merely losing the nuance of also meaning C). There's still a difference between mere provocation ("I will live longer than you...") and a direct threat ("...because I will kill you first"). The former could still merely be a statement of confidence (i.e. "our form of government is more stable and resilient than yours, whereas you're overextending yourselves and will deplete your resources").