New Defender's Study Bible Notes
25:11 seventy years. The beginning and end points of the prophesied seventy-year Babylonian captivity of the Jews are in question, because of the unsettled state of the Babylonian and Medo-Persian chronologies of this period, as well as the several stages of deportation into Babylon and the several stages of return from exile under Ezra and Nehemiah. No matter how this period is calculated in detail, however, it is certainly of a seventy-year order of magnitude (approximately 606–536 B.C.).