Book of Numbers

The Book of Numbers is the fourth book of the Hebrew Bible, and the fourth of five books of the Jewish Torah/Pentateuch.
The first half of Numbers tells what happened to the generation of Israelites who left Egypt with Moses.
Numbers begins at Mount Sinai, where the Israelites have received their laws and covenant from God and God has taken up residence among them in the sanctuary. The task before them is to take possession of the Promised Land. The people are numbered and preparations are made for resuming their march. The Israelites begin the journey, but immediately they "murmur" (complain or kvetch) at the hardships along the way. They arrive at the borders of Canaan and send spies into the land, but on hearing the spies' report the Israelites refuse to take possession of Canaan and God condemns them to death in the wilderness until a new generation can grow up and carry out the task. The book ends with the new generation of Israelites in the plain of Moab ready for the crossing of the Jordan River.
Numbers is the culmination of the story of Israel's exodus from oppression in Egypt and their journey to take possession of the land God promised their fathers. As such it draws to a conclusion the themes introduced in Genesis and played out in Exodus and Leviticus: God has promised the Israelites that they shall become a great nation, that they will have a special relationship with Yahweh their god, and that they shall take possession of the land of Canaan. Against this, Numbers also demonstrates the importance of holiness, faithfulness and trust: despite God's presence and his priests, Israel lacks faith and the possession of the land is left to a new generation.
The book has a long and complex history, but its final form is probably due to a Priestly redaction of a Yahwiistic original text some time in the early Persian period (5th century BC).

Bamidbar, on Numbers 1-4: First census, priestly duties
Naso, on Numbers 4-7: Priestly duties, the camp, unfaithfulness and the Nazirite, Tabernacle consecration
Behaalotecha, on Numbers 8-12: Levites, journing by cloud and fire, complaints, questioning of Moses
Shlach, on Numbers 13-15: Mixed report of the scouts and Israel's response
Korach, on Numbers 16-18: Korah’s rebellion, plague, Aaron’s staff buds, duties of the Levites
Chukat, on Numbers 19-21: Red heifer, water from a rock, Miriam’s and Aaron’s deaths, victories, serpents
Balak, on Numbers 22-25: Balaam's donkey and blessing
Pinchas, on Numbers 25-29: Phinehas, second census, inheritance, Moses' successor, offerings and holidays
Matot, on Numbers 30-34: Vows, Midian, dividing booty, land for Reuben, Gad, and half of Manasseh
Masei, on Numbers 33-36: Stations of the Israelites’ journeys, instructions for conquest, cities for Levites