St George,
I know this is all unreal WTS thinking, but I am simply pointing out what they are saying, and its implications for them.
The WTS starts the "70 years" from the moment that the last Jews, including Jeremiah, went into Egypt. This took place in the 7th month. (See The Watchtower, October 1, 2011, pages 27-28
The WTS starts its 2520 years from the timing of Jerusalem's destruction. This took place in the 5th month. (Jer 52:12)
The WTS assumes that these events took place in the same year. It assumes, without any evidence, that the first returnees assembled at the site of the destroyed temple in 537 BCE. This took place in the 7th month.
They then count back 70 years to the exodus into Egypt; ergo 607 BCE. They then go back a further two months to date the destruction of Jerusalem in the same calendar year, thereby locating its start of the 2520 years. The have a two month link between the exodus and the destruction, which I say is inconceivable:
http://www.jwstudies.com/Did_Jews_exit_after_two_months.pdf
Ann, I take your point. Thanks.
Doug