Genesis 47:18-22

18When that year was over, they came to him the following year and said, “We cannot hide from our lord the fact that since our money is gone and our livestock belongs to you, there is nothing left for our lord except our bodies and our land.

19Why should we perish before your eyes—we and our land as well? Buy us and our land in exchange for food, and we with our land will be in bondage to Pharaoh. Give us seed so that we may live and not die, and that the land may not become desolate.” 20So Joseph bought all the land in Egypt for Pharaoh. The Egyptians, one and all, sold their fields, because the famine was too severe for them. The land became Pharaoh’s, 21and Joseph reduced the people to servitude, Samaritan Pentateuch and Septuagint (see also Vulgate); Masoretic Text and he moved the people into the cities from one end of Egypt to the other.

22However, he did not buy the land of the priests, because they received a regular allotment from Pharaoh and had food enough from the allotment Pharaoh gave them. That is why they did not sell their land.