What does Numbers 15:6 mean?

Numbers 15:6 gives a specific instruction about the grain and oil offering that must accompany the sacrifice of a ram. In plain terms, God is telling Moses that whenever a ram is offered as a burnt offering or peace offering, it cannot be presented alone. It must be accompanied by two-tenths of an ephah of fine flour (roughly four to five quarts, or about six to seven pounds) mixed with one-third of a hin of olive oil (roughly a quart and a half). This grain-and-oil mixture is called a "meal offering" or "grain offering," and its size increases depending on the value of the animal being sacrificed — a lamb required less, a ram required this middle amount, and a bull required even more (as the following verses in the chapter show).

The context is the wilderness wandering period, after the failed attempt to enter the Promised Land recorded in Numbers 13–14. Because of Israel's unbelief, that generation was condemned to die in the wilderness, yet God immediately turns in chapter 15 to give instructions for worship "when you have come into the land" (Numbers 15:2). This is significant: even in judgment, God reaffirms His covenant promise that Israel will eventually possess Canaan. Moses, as covenant mediator, receives these laws from the Lord to pass on to the people so that proper worship would be established once they settled in the land. These offerings were to apply not only to native Israelites but also to any foreigner living among them (Numbers 15:14-16), showing that the sacrificial system was meant to unite the whole community