Jeffro
Wrong. Zechariah doesn't refer to 70 years of exile at all, nor to Babylon's 70 years. Zechariah (7:1-7) refers to annual fasts in the 5th and 7th months, which by the 9th month of Darius' 4th year (518 BCE) had been held for 70 years. This places the first year of those fasts in 587 BCE when Jerusalem was destroyed.
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Wrong. Zechariah made two references to Jeremiah's 70 years- the period of Exile. The first reference is Zech 1:12 by means of an oracle on the 24th day,11th month in King Darius 2nd year- 519 BCE. The second reference is in Zech 7:5 by means of an oracle on the 4th day, of the 9th month in King Darius' 4th year-518 BCE.
These two references point back to the now completed or fulfilled Exilic period of 70 years wherein the Jews were engaped in improper fasting now being chastised by the prophet's oracle. Thus, Zechariah's two references to the 'seventy years' proves that the 70 years began in 607 BCE and ended in 537 BCE
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The Jews arrived in Jerusalem in 538 BCE rather than 537 so you're wrong there anyway, but that was only after Babylon was called to account in 539 BCE when the 70 years actually ended (Jeremiah 25:12). 539+70=609, which is the year that Babylon destroyed Assyria's final capital at Harran (compare Ezekiel 27:2, 23; Isaiah 23:13-15).
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False. The Jewish Exiles returened home in 537 BCE and not 538 BCE as this latter year is impossible as the time frame is too short to accommodate the many events that began in the first year of Cyrus. which marked the end of the 70 years fulfilling Jeremiah's prophecy at Jer 25:12.Your date 609 BCE for the beginning of the 70 years rather than 607 BCE is too fuzzy and is historically unreliable. Even Carl Jonsson considered 605 BCE rather than 609 BCE as equally possible so you have a big problem here.
You can go now with scholar's permission.
scholar JW