There is a very special but blunt message in Numbers 18–19, targeted to the High Priest and his family. Moses is not addressed at all. God impresses upon the High Priest family and the Levites the seriousness of their charge. They are given certain rights within in the community of Israel but also gives them very serious responsibilities. God also places serious consequences on the High Priestly family and the Levites if they are derelict in their Temple duties.
This section could be titled, “The Three Stories of Rebellion”: of a man collecting firewood on Shabbat, of Korah, of two families of the tribe of Reuben. God dealt with each rebellion in a different way. All imprinted in the minds of the people over and again God was the one in charge, and it was God’s prerogative to choose Moses and Aaron.
Not only did the people believe the “evil” report, they actually wanted to stone the two spies who brought back the faithful report.
Shavu’ot is a holiday celebrated 50 days after the Feast of Firstfruits. By this time, most of the harvest is gathered, prepped and stored. But God told His people in Leviticus 23 that they were supposed to leave a remnant behind for the “poor and the stranger.”
Numbers 12 shows us the consequences of Miriam and Aaron’s jealously of God’s special relationship with Moses. Since they could not openly complained about God’s special treatment of Moses, they struck out against Moses’s by attacking his Cushite wife. Numbers 13 shows us the story of the first spies who went out into the land of Israel to scout out the land. God told Moses to call out one leader from each tribe to be the spies of the land.
In chapter 10, use of two silver trumpets is explained, such as calling together the people to celebrate the New Moon and other appointed times. In chapter 11, the people of Israel call out for more than meat and manna, and God curses the cravers with copious quail followed by a plague.
The events of this chapter occurred during the first month of the second year after the children of Israel left Egypt. There’s the provision for a “makeup Passover” for those unavoidably out of the country or “unclean” at the time of Passover and purification of the Levites as the primary “firstborn” of Israel in God’s eyes.