Isaiah 1:31 uses this word in a devastating metaphor: the strong man becomes tinder, his work becomes a spark, and both burn together with none to quench. The prophet transforms images of strength into images of consumption. A spark is simultaneously tiny and dangerous—too small to fight, too hot to ignore. In ancient combustion technology, a single spark could ignite dry materials instantly, making this an apt figure for how the mighty will ignite their own destruction.