What does Genesis 41:48 mean?
Joseph is implementing the plan he proposed to Pharaoh (Genesis 41:33–36). God's message in Pharaoh's dream meant that the current seven years of abundant crops would be followed by seven years of little to no crops (Genesis 41:28–32). So, Joseph is using the authority given to him by Pharaoh to gather a portion of every crop and to put it into storage (Genesis 41:39–41).The specific plan had been to gather one-fifth of the harvest from every field, to haul that grain into the cities, and to store it there for the coming famine. We're not told if any farmers objected to this confiscation of their property. Of course, in civilizations such as ancient Egypt, there wasn't freedom to disagree with deified rulers such as Pharaoh. The authority of the Pharaoh was absolute, and Joseph's plan carried Pharaoh's authority. To stand against Joseph would have required risking one's own life.
The cities served as centralized storage places for the grain in each region. They would later serve as centralized distribution centers during the famine years. Additional details about Joseph's plan are found in Genesis 47:13–26.