“Speak to Aaron and his sons and to all the Israelites and say to them: ‘This is what the Lord has commanded:
The sons of Amram: Aaron and Moses. Aaron was set apart, he and his descendants forever, to consecrate the most holy things, to offer sacrifices before the Lord, to minister before him and to pronounce blessings in his name forever.
The Lord said to Moses,
Any Israelite who sacrifices an ox, a lamb or a goat in the camp or outside of it
Be careful not to sacrifice your burnt offerings anywhere you please.