The book begins with the words Moses spoke to all Israel in the wilderness east of the Jordan, in the fortieth year and after the victory over the kings Sihon and Og. The text notes that the journey from Horeb to Kadesh-barnea, which could be made in eleven days, took far longer. Moses recalls that at Horeb the Lord told Israel to break camp and take the land he had promised to Abraham, Isaac and Jacob.
Moses also recalls that, since the burden of the people was too heavy for him alone, leaders were appointed over thousands, hundreds, fifties and tens. He charged the judges to hear small and great alike without partiality and without fear of anyone, because judgment belongs to God, and to bring the hard cases to him.
From Kadesh-barnea, at the people's request, twelve men, one from each tribe, were sent to scout the land. They returned with fruit from the valley of Eshcol and confirmed that the land was good. But the people rebelled, grumbled in their tents and said the Lord hated them, frightened by fortified cities and by the Anakim. Moses reminded them that the Lord had fought for them in Egypt and carried them as a father carries his son.
The Lord swore that none of that generation would see the land except Caleb, and that Joshua would enter. Moses was barred on account of the people. Their children, who did not yet know good from evil, would enter. When the people tried to go up on their own, the Amorites chased them like bees as far as Hormah, and the Lord did not listen to them.