The fourth book of the Pentateuch, and so called from the two numberings of the people, one at the beginning and the other at the close of the period it embraces; it embraces a period of 38 years, and continues the narrative from the departure of the camp of Israel out of the wilderness of Sinai to its arrival on the borders of Canaan, and relates an account of the preparations for the march, of the march itself, and of the preparations for the conquest.