If we talk about Numbers 18 in detail,

Numbers chapter 18 describes the tribe of Levi, their priestly duties, and the specific rights and duties afforded to them. This chapter details the commands God gave to Aaron, his sons, and the entire tribe of Levi. The main points are as follows:

1. Role of priests and Levites (Numbers 18:1-7)

Responsibilities of Aaron and his sons:

• Aaron and his sons are in charge of all the work of the sanctuary and the altar, and must faithfully perform their duties.
• Because the responsibility of the priesthood is so heavy, any guilt that may arise from their mistakes falls on them.

Responsibilities of the Levites:

• The Levites are those set apart by God to help Aaron and his sons.
• They assist with all matters related to the tabernacle and serve the tabernacle on behalf of the children of Israel.
• Levites do not have direct access to the sanctuary and holy relics, and that role is held only by priests.

2. Portion given to priests (Numbers 18:8-20)

Priest's share:

• God gives Aaron and his sons some of the holy offerings made by the children of Israel.
• This is to sustain the priest's family, so they can eat this offering.
• Priests have the right to receive a portion of all grain offerings, sin offerings, and trespass offerings that are burned on the altar.
• Also, the firstfruits and all the oil, new wine and grain are given to them.

3. Portion given to the Levites (Numbers 18:21-32)

The Levite's share:

• The Levites receive tithes from the children of Israel. This is a gift from God in return for their service.
• The Levites must give one-tenth of the tithe they received to God. This is the responsibility of the priests given to Aaron.
• By doing this, the Levites, like the children of Israel, give a portion of their offering to God to the priests, demonstrating their devotion to God.

summary

Chapter 18 of Numbers details the duties of priests and Levites and the rights and duties given to them. The priests are in charge of all the work of the sanctuary and altar, and their responsibility is very great. The Levites help the priests serve the tabernacle and make a living by receiving tithes from the children of Israel. But the Levites also show their devotion by giving a portion of their tithes to God. All of these regulations play an important role in ensuring that the order and regulations established by God are followed and that the entire Israeli community participates in serving God.