Numbers 18:21-29

21“I am giving the Levites one-tenth of every Israelite’s income. This is in return for the work they do at the tent of meeting.

22The other Israelites must never again come near the tent of meeting. Otherwise, they’ll suffer the consequences of their sin and die.

23Only the Levites will do the work at the tent of meeting. They will be responsible for their own sins. This is a permanent law for future generations. They will own no property as the other Israelites will.

24Instead, I will give the Levites what the Israelites contribute to the Lord—one-tenth of the Israelites’ income. This is why I said about them, ‘They will own no property as the other Israelites do.’ ”

25The Lord said to Moses,

26“Speak to the Levites and say to them: You will take one-tenth of the Israelites’ income which I’m giving you as your property. When you do, you must contribute one-tenth of that income as your contribution to the Lord.

27Your contribution will be considered to be grain from the threshing floor  or juice from the winepress.

28So you, too, will contribute one-tenth of your income to the Lord out of all that you receive from the Israelites’ income. You will give the Lord’s contribution to the priest Aaron.

29Out of all the gifts you receive, you must contribute the best and holiest parts to the Lord.