Joel 2 Verses 6-9

At the sight of them, nations are in anguish;
    every face turns pale.

At the sight of this army?  

People will be fearful, to the point of being pale or without blood to the face,

 as if life has already left them,

when they see the things that are coming over the earth.

 They charge like warriors;
they scale walls like soldiers.
They all march in line,
not swerving from their course.

 

They will perform their duty.

Nothing will hold them back.

Nothing.

Go ahead, put your faith in provisions, 

food, water, MRE's, weapons, ammo whatever.

Guess what?

Won't matter. 

You won't be able to stop them.

They will be soldiers in God's army.

They will stay on the path.

They will do their duty.

They do not jostle each other;
    each marches straight ahead.
They plunge through defenses
    without breaking ranks. 

 They will not get in each others way.

Each will perform their task.

No defenses will stop them.

This army?

Supernatural in it's ability.

They will not break ranks.

They will stay the course.

They rush upon the city;

they run along the wall.

They climb into the houses;

like thieves they enter through the windows.

 

 You will not escape them.
They will make "The noise of the Lord" heard.
The approach is over.
They have come over "the tops of the mountains,"
they have scaled "the wall,"
(They have penetrated the defense)
 They have "climbed onto the houses,"
they have "entered the windows,"