Jeffro
Actually, the order of the chapters of Jeremiah in the Greek Septuagint (with the proclamations against individual nations inserted between the first and second halves of what we call chapter 25) makes it even more clear that the 70 years applied to all the surrounding nations serving Babylon and definitely not just ‘Jewish exile’.
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Nonsense: If this is really the case then you should be able to tabulate historically when each of those nations served Babylon. The only nation that we have a precise history of Babylonian servitude is Judah as correctly prophesied by Jeremiah.
The use of the LXX is valuable but it is important to compare that with the main or principal text- Masoretic Text when it comes to any historical analysis and exegesis.