1)
Why does it say that their dead bodies will be cast?
1.
Radak, Malbim: No one will bury them 1 . Therefore, their decay will rise.
1
Malbim: This will not be due to am enemy that stops them from burying them.
2)
Why does it mention "Chaleleihem" and "Pigreihem"?
1.
Malbim: Chaleleihem die on the battlefield via the sword. Pigreihem die in the city.
3)
Will the mountains melt due to their blood?!
1.
Radak: This is an exaggeration. Malbim - it is as if the blood reaches the mountain tops.