Who will be like a deer and flock?
Rashi: The residents of Bavel.
Radak, Malbim: Other nations in Bavel [at the time of Bavel's fall]. Malbim - Bavel was the most glorious land (19), and a business center.
From what is the deer cast off?
Rashi: From its place.
Radak: When people chase a deer to trap it, it runs with all its strength. So all foreigners in Bavel will leave in haste to return to their lands.
Why does it mention a deer cast off and scattered flock?
Malbim: Flock need to be gathered in a herd, and the shepherd guards them from any mishap. Then they are assured, even though they graze in a field or forest. When they are scattered, they are lost, and they are prey to wolves. A deer normally goes alone; deer do not gather in herds - "Domeh Dodi li'Tzvi
Why does it say "Ish El Amo Yifnu" and "v'Ish El Artzo Yanusu"?
Malbim: Refer to 13:14:3:1.