Genesis 47:22-31

22 Only the priests' land did he not acquire, because the priests were entitled to provisions from Pharaoh, and they ate from what Pharaoh provided them; therefore they did not sell their land.
23 Then Yosef said to the people, "As of today I have acquired you and your land for Pharaoh. Here is seed for you to sow the land.
24 When harvest time comes, you are to give twenty percent to Pharaoh; eighty percent will be yours to keep for seed to plant in the fields, as well as for your food and for that of your households and your little ones."
25 They replied, "You have saved our lives! So if it pleases my lord, we will be Pharaoh's slaves."
26 Yosef made it a law for the country of Egypt, valid to this day, that Pharaoh should have twenty percent. Only the property belonging to the priests did not become Pharaoh's.
27 Isra'el lived in the land of Egypt seventeen years. They acquired possessions in it and were productive, and their numbers multiplied greatly.
28 Ya'akov lived in the land of Egypt seventeen years; thus Ya'akov lived to be 147 years old.
29 The time came when Isra'el was approaching death; so he called for his son Yosef and said to him, "If you truly love me, please put your hand under my thigh and pledge that, out of consideration for me, you will not bury me in Egypt.
30 Rather, when I sleep with my fathers, you are to carry me out of Egypt and bury me where they are buried." He replied, "I will do as you have said."
31 He said, "Swear it to me," and he swore to him. Then Isra'el bowed down at the head of his bed.
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.