1)
Why did they all flee?
1.
Malbim: Some blew Teru'ah of war, and some fled. Those blowing thought that the fleers are the enemy, and this spread throughout the camp, and they scattered in every direction.
Why did they all flee?
Malbim: Some blew Teru'ah of war, and some fled. Those blowing thought that the fleers are the enemy, and this spread throughout the camp, and they scattered in every direction.