Exodus 8:22

22. I will sever in that day the land of Goshen Here also is now a marked advance, a more distinctive character in the judgment . The putrid Nile had afflicted Egypt and Israel alike; the frogs and the lice had been found, at least to some extent, in the land of Goshen; but henceforth the Israelitish province was to be protected from the inflictions that were to fall upon heathen Egypt. Here was to be a decisive proof of Jehovah’s supremacy, to the end thou mayest know that I am JEHOVAH. I will put a division (or deliverance) between my people and thy people It is also to be considered, that while at the beginning of these inflictions the Israelites had been considerably scattered from Goshen throughout the land in the great public works, these successive judgments would have greatly hindered, if not by this time have totally suspended, the industrial activities of the nation. By this time there must have been a great national anxiety, and soon there was a general panic. Under these circumstances the Israelites would naturally gather together into their own province, and be no more mingled among the Egyptians. Thus this marked distinction in regard to Goshen would be now, perhaps, for the first time possible.