Numbers 4:19

4:19 but in order that they will live and not die when they approach the most holy things, do this for them: Aaron and his sons will go in and appoint each man to his service and his responsibility.

Numbers 28:7

28:7 “‘And its drink offering must be one quarter of a hin for each lamb. You must pour out the strong drink as a drink offering to the Lord in the holy place.

Numbers 28:12

28:12 with three-tenths of an ephah of finely ground flour mixed with olive oil as a grain offering for each bull, and two-tenths of an ephah of finely ground flour mixed with olive oil as a grain offering for the ram,