Genesis 47:21

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

19 Why should we perish before your eyes—we and our land as well? Purchase us and our land in exchange for food. Then we, along with our land, will be slaves to Pharaoh. Give us seed that we may live and not die, and that the land may not become desolate.”

20 So Joseph acquired for Pharaoh all the land in Egypt; the Egyptians, one and all, sold their fields because the famine was so severe upon them. The land became Pharaoh’s,

21 and Joseph reduced the people to servitude from one end of Egypt to the other.

22 However, he did not acquire the priests’ portion of the land, for it had been given to them by Pharaoh. They ate the rations that Pharaoh supplied; so they did not sell their land.

23 Then Joseph said to the people, “Now that I have acquired you and your land for Pharaoh this day, here is seed for you to sow in the land.

24 At harvest time, you are to give a fifth of it to Pharaoh, and four-fifths will be yours as seed for the field and food for yourselves and your households and children.”