Numbers 1-4 Census and Organization of Israel

Chapter 1 A Census of Israel's Warriors

God commands Moses to take a census of all the men able to bear arms from each tribe of Israel, to prepare for the journey to the promised land.
Chapter 2 Arrangement of the Camps

The organization of the twelve tribes into four camps around the tabernacle is detailed, along with the specific arrangement and order of their encampment.
Chapter 3 The Sons of Aaron

The lineage of Aaron's sons, who serve as priests, is listed, along with their duties and responsibilities in the tabernacle.
Chapter 4 Duties of the Levites
The specific responsibilities and duties of the Kohathites, Gershonites, and Merarites, who are Levites assigned to different aspects of transporting and caring for the tabernacle, are outlined.

Numbers 5-10 Purity and Holiness 

Chapter 5 Laws Concerning Uncleanness
Various laws concerning purity and uncleanness are given, including regulations for dealing with those who are ceremonially unclean and instructions for the trial of suspected adultery.
Chapter 6 The Nazirite Vow

Regulations regarding the Nazirite vow, a voluntary act of devotion involving abstaining from certain practices and dedicating oneself to the Lord for a specific period, are provided.
Chapter 7 Offerings at the Tabernacle's Dedication

The leaders of the twelve tribes present offerings at the dedication of the tabernacle, demonstrating their commitment and devotion to God.
Chapter 8 The Seven Lamps

Instructions are given for the lighting of the seven lamps on the golden lampstand (menorah) in the tabernacle, symbolizing God's presence and guidance among the Israelites.
Chapter 9 The Passover Celebrated

God commands the Israelites to celebrate the Passover as a memorial of their deliverance from slavery in Egypt, providing instructions for its observance.
Chapter 10 The Silver Trumpets

Moses is instructed to make two silver trumpets to be used for signaling various gatherings, such as calling the congregation together or signaling the movement of the camp.

Numbers 11-21 Journey Through Trials, From Complaints to Conquest

Chapter 11 The People Complain AND WANT QUAIL

The Israelites complain about their hardships in the wilderness, prompting God's anger.

He provides quail to satisfy their cravings but also sends a plague as punishment.

Chapter 12 Miriam and Aaron Oppose Moses

Miriam and Aaron speak against Moses, criticizing his Cushite wife.

God rebukes them, afflicts Miriam with leprosy, and Moses intercedes for her healing.

Chapter 13 Twelve Spies Sent into Canaan

Twelve spies, one from each tribe, are sent to explore the land of Canaan.

They return with a report of its richness but also express fear due to the strength of its inhabitants.

Chapter 14 The People Rebel and Judgment of God

The Israelites rebel against God and Moses, expressing a desire to return to Egypt.

As a consequence, God decrees that the current generation will not enter the promised land, except for Caleb and Joshua.

Chapter 15 Various Laws

God provides laws regarding various offerings, including those for unintentional sins, along with instructions for making tassels on garments to remind the people of their obligations.

Chapter 16 Rebellion of Korah, Dathan, and Abiram

Korah, Dathan, Abiram, and their followers rebel against Moses and Aaron's leadership.

God vindicates Moses and Aaron, and the rebels suffer divine judgment.

Chapter 17 Aaron's Staff Buds

God demonstrates Aaron's appointment as high priest by causing his staff to bud, blossom, and bear almonds, putting an end to the people's complaints against his leadership.

Chapter 18 The Duties of Priests and Levites

God assigns the responsibilities of the priests and Levites in the tabernacle service, including offerings, tithes, and care of the sanctuary.

Chapter 19 Laws for Purification

God provides instructions for purification rituals involving the ashes of a red heifer to cleanse from contact with death, emphasizing the importance of ritual purity.

Chapter 20 The Death of Miriam and Aaron

Miriam dies and is buried, and the people grumble for water.

God instructs Moses to speak to the rock, but he strikes it instead, resulting in his and Aaron's exclusion from entering the promised land.

Chapter 21 Conquest of Arad and the Bronze Serpent

The Israelites defeat the Canaanite king of Arad.

Later, they complain again, and God sends poisonous serpents. Moses raises a bronze serpent on a pole, and those who look at it are healed.