Jeremiah 46:4

Harness the horses, a call addressed to the charioteers; and get up, ye horsemen, the cavalry mounting their steeds for the attack, and stand forth with your helmets, this being directed to the infantry; furbish the spears, sharpening them for offensive work, and put on the brigandines, the coats of mail which were essential in ancient warfare. But now the prophet sees the army, which was so eager for the attack, most miserably defeated.