Exodus 8:22

I will sever in that day the land of Goshen. — This was a new feature, and one calculated to make a deep impression both on king and people. The “land of Goshen” can only have been some portion of the Eastern Delta, a tract in unwise different from the rest of Egypt — low, flat, well-watered, fertile. Nature had put no severance between it and the regions where the Egyptians dwelt; so the severance to be made would be a manifest miracle.