Rashi on Jeremiah
O dweller of the valley Jerusalem is in the midst of a valley. Another explanation. That the Holy One, blessed be He, devised a deep plot against you to destroy you.
Rashi on Jeremiah
Who will encamp upon us who will encamp upon us. Comp. (II Kings 6: 9) “For there the Arameans are encamped (נְחִתִּים).”