Sin offering, the burnt offering and the fellowship offering

  Leviticus 8-9

The Lord said to Moses, “Bring Aaron and his sons, their garments, the anointing oil, the bull for the sin offering, the two rams and the basket containing bread made without yeast, and gather the entire assembly at the entrance to the tent of meeting.” Moses did as the Lord commanded him, and the assembly gathered at the entrance to the tent of meeting.

Then Moses took the anointing oil and anointed the tabernacle and everything in it, and so consecrated them. He sprinkled some of the oil on the altar seven times, anointing the altar and all its utensils and the basin with its stand, to consecrate them. He poured some of the anointing oil on Aaron’s head and anointed him to consecrate him.

He then presented the bull for the sin offering, and Aaron and his sons laid their hands on its head. Moses slaughtered the bull and took some of the blood, and with his finger he put it on all the horns of the altar to purify the altar.

He then presented the ram for the burnt offering.

On the eighth day Moses summoned Aaron and his sons and the elders of Israel. He said to Aaron, “Take a bull calf for your sin offering and a ram for your burnt offering, both without defect, and present them before the Lord. 

He slaughtered the ox and the ram as the fellowship offering for the people.

Then Aaron lifted his hands toward the people and blessed them. And having sacrificed the sin offering, the burnt offering and the fellowship offering, he stepped down.

Why?

Here, the blood of bull calf and rams for sin offering, and ox and ram for fellowship offering.

How?

Jesus came to shed his blood for us, so we can erase our sins before the Lord.