Joel 2:2-6

A day of darkness and gloom, A day of clouds and thick darkness. As dawn is spread over the mountains, So there is a great and mighty people; There has never been anything like it, Nor will there be again after it To the years of many generations.

A fire consumes before them, And behind them a flame devours. The land is like the Garden of Eden before them, But a desolate wilderness behind them, And nothing at all escapes them.

Their appearance is like the appearance of horses; And like war horses, so they run.

With a noise as of chariots They leap about on the tops of the mountains, Like the crackling of a flame of fire consuming the stubble, Like a mighty people drawn up for battle.

Before them the people are in anguish; All faces turn pale.