1;  God commands Moses to number the people.
  5;  The princes of the tribes.
 17;  The number of every tribe.
 47;  The Levites are exempted for the service of the Lord.

 * wilderness.
  10:11,12  Ex 19:1  Le 27:34 
 * tabernacle.
  Ex 25:22  Le 1:1 
 * on the first day.
   As the tabernacle was erected on the first day of the first
   month, in the second year of their departure from Egypt, (Ex
   40:17,) and this happened on the first day of the second
   month, in the same year, it is evident that the transactions
   related in the preceding book must all have taken place in
   the space of one month, and during the time the Israelites
   were encamped at mount Sinai.

  9:1  10:11  Ex 40:17  1Ki 6:1