In the haftara for the second Shabbat of the "three weeks," God declares through the prophet Yirmiyahu (2:13), "For My nation has committed two evils: they left Me, a source of flowing water, to hew for themselves cisterns – broken cisterns that cannot contain water." Abandoning God is intrinsically evil and an inexcusable act of betrayal, but Benei Yisrael have committed an even graver evil by abandoning God in favor of "broken cisterns," foreign nations and beliefs that offer no benefit or security.
