Joel 2:4 in the King James Version
The appearance of them is as the appearance of horses; and as horsemen, so shall they run.
Context
3 A fire devours before them, and behind them, a flame burns. The land is as the garden of Eden before them, and behind them, a desolate wilderness. Yes, and no one has escaped them.
4 Their appearance is as the appearance of horses, and they run as horsemen.
5 Like the noise of chariots on the tops of the mountains, they leap, like the noise of a flame of fire that devours the stubble, like a strong people set in battle array.