Genesis 47:20-25

So Joseph bought all the land of Egypt for Pharaoh. All the Egyptians sold him their fields because the famine was so severe, and soon all the land belonged to Pharaoh. As for the people, he made them all slaves, from one end of Egypt to the other. The only land he did not buy was the land belonging to the priests. They received an allotment of food directly from Pharaoh, so they didn’t need to sell their land. Then Joseph said to the people, “Look, today I have bought you and your land for Pharaoh. I will provide you with seed so you can plant the fields. Then when you harvest it, one-fifth of your crop will belong to Pharaoh. You may keep the remaining four-fifths as seed for your fields and as food for you, your households, and your little ones.” “You have saved our lives!” they exclaimed. “May it please you, my lord, to let us be Pharaoh’s servants.”