Joel 2:5-7

5As with the rumbling of chariots, they leap on the tops of the mountains, like the crackling of a flame of fire devouring the stubble, like a powerful army drawn up for battle.

6Before them peoples are in anguish; all faces grow pale.

7Like warriors they charge; like soldiers they scale the wall. They march each on his way; they do not swerve from their paths.