Genesis 45:10

Goshen, a part of Egypt bordering upon Canaan, well watered and fit for cattle, and therefore most proper for the Israelites, not only for present use, and to keep them at some distance from the inward parts of Egypt, and from the court, but also that they might have Canaan always in their eye and mind, and in God's time might with least disadvantage march thither. Joseph promiseth this place, either because it was least inhabited, being in the borders of the land, or because he justly presumed upon the king's favour, and knew that the growing famine would give him opportunity to dispose of the people as he pleased.