Service and Revenues of the Priests and Levites - Numbers 18 The practical confirmation of the priesthood of Aaron and his family, on the part of God, is very appropriately followed by the legal regulations concerning the official duties of the priest and Levites (Num 18:1-7), and the revenues to be assigned them for their services (vv. 8-32), as the laws hitherto given upon this subject, although they contain many isolated stipulations, have not laid down any complete and comprehensive arrangement. The instructions relating to this subject were addressed by Jehovah directly to Aaron (see Num 18:1 and Num 18:8), up to the law, that out of the tenths which the Levites were to collect from the people, they were to pay a tenth again to the priests; and this was addressed to Moses (Num 18:25), as the head of all Israel.