Job 2:7-8
The Working Out of the Commission: 7, 8 Then Satan went forth from the presence of Jehovah, and smote Job with sore boils, from the sole of his foot to his crown. And he took him a potsherd to scrape himself with, and sat in the midst of ashes.
The description of this disease calls to mind Deu 28:35 with Deu 28:27, and is, according to the symptoms mentioned further on in the book, elephantiasis so called because the limbs become jointless lumps like elephants’ legs), Arab. jḏâm , ‛gudhâm , Lat. lepra nodosa, the most fearful form of lepra, which sometimes seizes persons even of the higher ranks. Artapan (C. Müller, Fragm. iii. 222) says, that an Egyptian king was the first man who died of elephantiasis. Baldwin, king of Jerusalem, was afflicted with it in a very dangerous form.
The disease begins with the rising of tubercular boils, and at length resembles a cancer spreading itself over the whole body, by which the body is so affected, that some of the limbs fall completely away. Scraping with a potsherd will not only relieve the intolerable itching of the skin, but also remove the matter. Sitting among ashes is on account of the deep sorrow (comp. Jon 3:6) into which Job is brought by his heavy losses, especially the loss of his children. The lxx adds that he sat on a dunghill outside the city: the dunghill is taken from the passage Psa 113:7, and the ”outside the city” from the law of the מצרע. In addition to the four losses, a fifth temptation, in the form of a disease incurable in the eye of man, is now come upon Job: a natural disease, but brought on by Satan, permitted, and therefore decreed, by God. Satan does not appear again throughout the whole book. Evil has not only a personal existence in the invisible world, but also its agents and instruments in this; and by these it is henceforth manifested.