What is the significance of fathers eating children?
Radak: This is a great punishment - there is nothing like this.
Malbim: This explains "a third you will burn in the city" (2).
Why does it say "v'Asisi Vach Shefatim"?
Malbim: Nebuchadnetzar will judge Tzidkiyah and the others who fled, and kill them - "va'Ydaber Ito Mishpatim" (Yirmeyah 52:9).
What is the significance of "v'Zarisi Es Kol She'erisech l'Chol Ru'ach"?
Radak: They were cast in every direction - some went to Egypt, some to Bavel, some to Mo'av, Amon and Edom 1 and other lands, like it says in the matter of Gedalyah.
Malbim: This fulfills "I will cast a third to the wind" (2).
Respectively, these are to the southwest, northeast, east, east and south of Eretz Yisrael. (PF)