Numbers 9-11

Passover
A little after two years following the escape for Egypt, the Lord told the Israelites to celebrate the Passover. Some, however, were ceremonially unclean at the time, and didn't know what to do. After consulting with God, Moses told the Israelites they should still ALL observe the Passover, but with on the 14th day of the SECOND month (not the first month), and they should eat lamb.

God is very serious about this, and says that anyone who is clean, not on a journey, and does not celebrate the Passover with be "cut off from his people" and will "bear the consequences of sin." Even aliens living amongst them have to celebrate the Passover.

Cloud
God guided the people in a cloud/fire. By day it was a cloud, by night it was fire. Whenever the cloud lifted from the tabernacle, the Israelites knew it was time to move on (and wander some more). Sometimes they would stay in a location for days, sometimes for months. They never really knew, they just obeyed.

Fire
Some complained of the hardship of hearing the Lord. God got mad, sent down fire from heaven,  and "consumed some of the outskirts of the camp." The people cried to Moses, who prayed to God.  The fire went down.

Lesson: craving Meat

The Israelites were getting sick of manna, which they gathered, ground up, and baked into the same olive-oil flavored cakes everyday. They started complaining that they wanted meat. They longed for the days in Egypt when they could eat cucumbers, leeks, garlic, and other fine tasting foods. Moses complained to God saying he couldn't stand leading these grumbling people anymore, and asked God to just "kill me now!"

God asked Moses to gather 70 elders so he could put the Spirit on the 70 elders so they could help out Moses. As the Spirit came onto the elders, they all began prophesying.  In fact, a few other non-elders were also filled with the Spirit and started prophesying.

God then sent wind, which brought in TONS of quail from the sea. The Israelites hungrily gathered tons of quail and cooked it to eat. Yet, while the meat was between their teeth and before they could swallow, the Lord's anger BURNED and he struck them with a huge plague.

They buried the Israelites were had been hungry and have craved meat.