It shall be for Aaron and his sons as their portion forever from the sons of Israel, for it is a contribution; and it shall be a contribution from the sons of Israel from the sacrifices of their peace offerings, their contribution to the Lord.
So you shall also present an offering to the Lord from all your tithes, which you receive from the sons of Israel; and from it you shall give the Lord’s offering to Aaron the priest.
And you shall say to them, ‘When you have offered from it the best of it, then the rest shall be credited to the Levites like the product of the threshing floor, and like the product of the wine vat.