Lev 7, 8

Interesting that even the alter had to be atoned for (v15) signifying that nothing that is made by man can measure up to the holiness of God without being purified by God.
The consecration of Aaron and his sons followed this pattern:
1. annointing oil to consecrate
2. bull of the sin offering for forgiveness
3. ram of the burnt offering for worship
4. ram of ordination
5. unleavedned bread as wave offering
6. annointing oil to consecrate.

BUT N.B.
THE LORD ORDAINS - NOT MAN (v33)