27:34 in mount Sinai. The book of Leviticus begins and ends with God speaking to Moses out of the tabernacle of the congregation (Leviticus 1:1) while still encamped by Mount Sinai. The book of Numbers follows directly, with God still speaking (Numbers 1:1). The tabernacle had been erected on the first day of the first month, about a year after they had left Egypt (Exodus 40:2,17). Since Numbers begins on the first day of the second month of that year, it follows that all the events and instructions of Leviticus took place in one month’s time.