8 And the Lord said unto Moses and unto Aaron, Take to you handfuls of ashes of the furnace, and let Moses sprinkle it toward the heaven in the sight of Pharaoh.
9 And it shall become small dust in all the land of Egypt, and shall be a boil breaking forth with blains upon man, and upon beast, throughout all the land of Egypt.
10 And they took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it up toward heaven; and it became a boil breaking forth with blains upon man, and upon beast.
11 And the magicians could not stand before Moses because of the boils; for the boil was upon the magicians, and upon all the Egyptians.
12 And the Lord hardened the heart of Pharaoh, and he hearkened not unto them; as the Lord had spoken unto Moses.
Ever since Aaron and Moses turned the river to blood, there hadn’t been much pageantry for the curses God inflicted upon Egypt. Here, though, Moses was to give another visual performance to illustrate the next punishment that was coming. He was told to take handfuls of ashes and sprinkle them in the air. The ashes, we are told, would become dust, and the dust would fester in the body and form a boil.
There is clearly some special symbolism here. Ashes from the furnace seems emblematic to me of suffering and death, or destruction and ruin. Intense heat and fire breaks down some form—wood, coal, straw, flesh—and reduces it to dead ash. Perhaps the ash represented the Israelites who had toiled under the hot sun, broken underneath their labors, and died in premature deaths. We also know that ash was often associated in the Bible with great mourning. There are several passages that speak of times of great mourning and penitence, where the humbled people abased themselves in “sackcloth and ashes.”
So perhaps the sprinkling of the ashes that fester in the skin and emerge as boils is representative of rebellion. The pattern of many nations has been to persecute and enslave a particular set of people, who suffer and die, who are ground into ash, but who then foment an uprising, an angry boil that violently bursts out against their captors.
And speaking of boils, that is something I am directly familiar with. I served a mission in the West Indies, where boils were a frequent affliction. I understand the incredible swellings that stretch and heat the skin, the great tenderness and pain, the disgust when it finally ruptures, the intense spasms when pulling out the heart of it. It sounds as though the Egyptians may have had multiple boils at the same time, too, something that I personally never experienced, but which I cringe at the thought of. In addition to any larger, political symbolism, I believe this curse also represented the ugly, festering, and searing side of sin. Something corrupt had gone into the Egyptians and their own flesh was revolting against it with excruciating results. It is just the same when we subject our God-given souls to darkness.