'Dust' in the Bible

and in the presence of his colleagues and the army of Samaria he said, "What are these feeble Jews doing? Will they be left to themselves? Will they again offer sacrifice? Will they finish this in a day? Can they bring these burnt stones to life again from piles of dust?"

On the twenty-fourth day of this same month the Israelites assembled; they were fasting and wearing sackcloth, their heads covered with dust.