1)
Why did Yirmeyah address the Kohanim and the Am?
1.
Malbim: Since the false Nevi'im told them that the Kelim of Beis Hashem will return, they concluded that they will be exempt from being under Nebuchadnetzar's yoke.
2)
What Kelim of Beis Hashem are discussed?
1.
Rashi: It is those that were exiled with Yechanyah.
