To whom does "Magen Giboreihu" refer?
Rashi: [The shield of] Nebuchadnetzar's Giborim, who besiege Ashur.
Malbim: sd44 trusted in his multitude of Giborim.
What is "Me'adam"?
Rashi: It is red. Malbim - this was a sign that they will spill much blood, without mercy.
What are "Mesula'im"?
Rashi: They are dressed in Zehoris (red 1 , from Tola'as Shani). Radak - this is due to their grandeur and great honor. Also, it is shiny, and instills fear on people.
Malbim: This is a sign of spilling blood.
What is the meaning of "b'Esh Pelados ha'Rechev b'Yom Hachino"?
Rashi: On the day that he is prepared to go out in the army, he polishes his iron chariot. I do not know what is Pelados. It seems that it is a kind of nicely polished iron. Some say that is an expression of "Lapid Esh" (Bereishis 15:17); the letters are reversed.
Radak: It is as if the chariot goes in Esh Pelados (Lapidei Esh, flames), for the wheels are iron, and when they go quickly on rocks, fire (sparks) exude. It seems that the chariot is in fire. This is on the day that Nebuchadnetzar prepared his army to come against Ninveh.
Malbim: The chariots prepared nor for war, they were put in Pelados Esh (flames), so they will be new, as if they were prepared today.
Why does it say "veha'Berushim Har'alu"?
Rashi citing Targum Yonasan: The leaders of their camps are [wrapped] in colored garments. Rashi - Har'alu is wrapped. This is like "ha'Netifos veha'Shiros v'Har'alos" (Yeshayah 3:19). A Mishnah says, girls of Madai go out Re'ulos (Shabbos 65a).
Radak, Malbim: Their spears are of pine wood. They have lethal poison at their ends to kill quickly one who is stabbed with them. Radak - they are sharp at the end, and they insert them into man's body, like it says about Yo'av "va'Yikach Sheloshah Shevatim b'Chapo va'Yiska'em b'Lev Avshalom" (Shmuel II, 18:14). Har'alu is like Tar'elah (poison).
Radak citing his father: The officers and leaders of Ninveh shook. Leaders are compared to cedars and Berushim. When they saw [Nebuchadnetzar's] army, they trembled.
