Numbers 18:25-29

New International Version

²⁵ The Lord said to Moses, ²⁶ “Speak to the Levites and say to them: ‘When you receive from the Israelites the tithe I give you^(A) as your inheritance, you must present a tenth of that tithe as the Lord’s offering.^{(B) 27} Your offering will be reckoned^(C) to you as grain from the threshing floor^(D) or juice from the winepress.^{(E) 28} In this way you also will present an offering to the Lord from all the tithes^(F) you receive from the Israelites. From these tithes you must give the Lord’s portion to Aaron the priest. ²⁹ You must present as the Lord’s portion the best and holiest part of everything given to you.’