'Ashes' in the Bible

Then the Lord said to Moses and Aaron, “Take handfuls of soot from the brick kiln, and let Moses throw it toward the sky in the sight of Pharaoh.

So they took soot from the kiln, and stood before Pharaoh; and Moses threw it toward the sky, and it became boils erupting in sores on man and animal.

You shall make pots to remove its ashes, and shovels, basins [to catch the blood of the sacrificed animal], meat-forks, and firepans [to store live coals]. You shall make all its utensils of bronze.