Genesis 47:20-25

So Joseph gained possession of all the farmland in Egypt for Pharaoh. Every Egyptian sold his land in exchange for food, for the famine was that severe. Eventually, the Egyptians had transferred all the land to Pharaoh. Everyone became a slave to Pharaoh, from one end of Egypt to the other. However, he did not take over the land of the priests, for they received royal subsidies from Pharaoh. They lived on the food he provided for them, and that is why they did not have to sell their land. Joseph said to the people, “Today I have acquired for Pharaoh you and all your land. Here is seed for you to sow in the land. But when harvest comes, you must pay one-fifth to Pharaoh, and you may keep the rest for planting your fields and for food for yourselves and your families to nourish your household and your little ones.” “You have saved our lives!” they said. “May we find your favor, our lord, and we will be slaves to Pharaoh.”