12 This is what the LORD says: “If those who do not deserve to drink the cup must drink it, why should you go unpunished? You will not go unpunished, but must drink it.

Read Jeremiah 49:12 Using Other Translations

For thus saith the LORD; Behold, they whose judgment was not to drink of the cup have assuredly drunken; and art thou he that shall altogether go unpunished? thou shalt not go unpunished, but thou shalt surely drink of it.
For thus says the LORD: "If those who did not deserve to drink the cup must drink it, will you go unpunished? You shall not go unpunished, but you must drink.
And this is what the LORD says: “If the innocent must suffer, how much more must you! You will not go unpunished! You must drink this cup of judgment!