'Madly' in the Bible

Go up, O horses, and drive madly, O chariots, and let the warriors go forth; Cush and Put, who wield [the] small shield, and Lud, who wield [and] bend [the] bow.

The chariots race madly through the streets; they rush back and forth in the public squares. Their appearance like lightning bolts, they dart about like flashes of lightning.