Exodus 9:9 - Exposition

It shall become small dust . Rather, "It shall be as dust." No physical change is intended by the expression used, but simply that the "soot" or "ash" should be spread by the air throughout all Egypt, as dust was wont to be spread. And shall be a boil breaking forth with blains . Literally, "an inflammation, begetting pustules." The description would apply to almost any eruptive disease. The attempts definitely to determine what exactly the malady was, seem to be futile—more especially as diseases are continually changing their forms, and a malady which belongs to the fourteenth or fifteenth century before our era is almost certain to have been different from any now prevalent. The word "blains"—now obsolete as a separate word—appears in "chilblains."