The Lord commanded Moses
He may enter the Most Holy Place only after he has brought a young bull for a sin offering and a ram for a burnt offering.”
No Israelite may eat any fat or any blood; this is a rule to be kept forever by all Israelites wherever they live.
If it is the whole community of Israel that sins and becomes guilty of breaking one of the Lord's commands without intending to,
to tell the people of Israel that anyone who sinned and broke any of the Lord's commands without intending to, would have to observe the following rules.
But if any of the blood is brought into the Tent and used in the ritual to take away sin, the animal must not be eaten; it must be burned.
Aaron went to the altar and killed the young bull which was for his own sin offering.