I remember my father asking us what we would do if we were with a group of 5,000 people that survived a plane crash in the middle of the desert, how we would govern, obtain food, etc. I now understand why he asked that.
Moses receives the law from God, including make and service of the tabernacle and the cleanliness of food. This was probably in part because the Israelites had proven themselves an unruly bunch back in the day when there was no law, so the law may have been instated to keep them as far away from such practices as idol worship, murmuring, desiring to return to Egypt, forgetting about God, and probably several other things.
Moses receives the law from God, including make and service of the tabernacle and the cleanliness of food. This was probably in part because the Israelites had proven themselves an unruly bunch back in the day when there was no law, so the law may have been instated to keep them as far away from such practices as idol worship, murmuring, desiring to return to Egypt, forgetting about God, and probably several other things.