Numbers 18:24-28

VIN(i) 24 "Instead, 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." 25 the LORD said to Moses: 26 "You will speak to the Levites and say to them, 'When you receive the tithe from the Israelites that I have given to you from them for your inheritance, you will present a contribution from it to the LORD, a tithe from a tithe. 27 "'Your contribution will be considered to be grain from the threshing floor or juice from the winepress. 28 Thus you also will offer a heave offering to the LORD of all your tithes, which you receive of the sons of Israel. And from it you will give the LORD's heave offering to Aaron the priest.