Harness the horses; and get up, ye horsemen, and stand forth with your helmets; furbish the spears, and put on the brigandines. Furbish the spears - Cleanse, brighten, and sharpen them; from the Franco-Gallic fourbir, to polish, brighten.
Brigandines - A coat of mail, especially that which was made scale fashion; one plate overlapping the other, like the scales of fish.