'Brands' in the Bible

And when he had set the brands on fire, he let them go into the standing grain of the Philistines, and burnt up both the shocks and the standing grain, and also the oliveyards.

Behold, all ye that kindle a fire, that gird yourselves about with firebrands; walk ye in the flame of your fire, and among the brands that ye have kindled. This shall ye have of my hand; ye shall lie down in sorrow.