Preview: Ever notice that Gedaliah seems to have been obsessed with issues related to the “harvest?” Why is that? And why, for that matter, do we find “harvest” themes playing such an important role in the prophecies of sefer Yirmiyahu – where Gedaliah’s story is recorded – and in megillat Eichah, which Yirmiyahu wrote? And, while we’re at it: why did the exile which Yirmiyahu bemoaned last “seventy years?” Might these seventy years be related to the seven-year agricultural cycle known as “shemittah?”And might that cycle, in turn, have its roots in the seven year agricultural cycle over which Yosef presided, back in Egypt?