Summary of The Haftorah:
Yirmiyahu's words ring with the same urgency and fear as the Tochacha itself. Yirmiyahu was the Navi who beseeched his people to repent before the impending destruction and exile of the nation. He decried the delusions of those who used their ill begotten wealth to serve idols and foreign ideologies. They denied the benevolence of G-d and were destined to go into exile.
The acquisition of wealth through illegal means is a denial of G-d's ability to provide and protect. He who trusts in man for his strength and future is destined to be betrayed. He will be as a lone tree in the wilderness (17:6) bereft of protection or support. On the other hand, he who trusts in G-d will be blessed and secured.
Reemphasizing the message of Sefer Vayikra, Yirmiyahu exhorts the nation to beg G-d for salvation and healing, and to trust His constant love and caring.