Who should arrange shields (prepare to fight)?
Radak #1: Nebuchadnetzar's army should prepare to fight Pharaoh's army.
Radak #2: Pharaoh's army should prepare to fight Nebuchadnetzar's army, which is coming against them.
Malbim: The Navi speaks as if Egypt [will make all preparations to fight, but] will not go out to war again at all - v'Lo Hosif Melech Mitzrayim Latzeis me'Artzo
What is the difference between "Magen" and "Tzinah"?
Rashi: Magen is [a shield] of cooked hide. When one goes out to war, he anoints it with oil (so arrows will slip away). Tzinah is of wood; it is like our shields.
Radak: Tzinah is like a Magen, just it has different characteristics.
Radak citing Targum Yonasan: Magen is round.
