1)
What did Tzidkiyah ask about?
1.
Malbim: Yirmeyah also prophesized that the city would be burned and conquered. Tzidkiyah asked if there was new prophecy.
2)
Yirmeyah already prophesized that Tzidkiyah will be given over to Melech Bavel (34:3)!
1.
Malbim: The Navi is out of order. That Nevu'ah was after this one.