Numbers 1:1

Overview - Numbers 1
God commands Moses to number the people.
The princes of the tribes.
17 The number of every tribe.
47 The Levites are exempted for the service of the Lord.
Treasury of Scripture Knowledge

Numbers 1:1  (King James Version)
And the LORD spake unto Moses in the wilderness of Sinai, in the tabernacle of the congregation, on the first day of the second month, in the second year after they were come out of the land of Egypt, saying,

Numbers 10:11 Numbers 10:12 Exodus 19:1 ; Leviticus 27:34

Exodus 25:22 ; Leviticus 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, ( Exodus 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 Exodus 40:17 ; 1 Kings 6:1