Sin Offering:

The sin offering of Leviticus had to be fulfilled in Jesus Christ. Whether it was that strong animal in the bullock, or that lamb which was dumb before the shearers, both acted as a shadow of what was to be perfect and whole sin offering.

The summery of the offerings that Christ would later fulfill is in,

Leviticus 7:37 KJV 1900

This is the law of the burnt offering, of the meat offering, and of the sin offering, and of the trespass offering, and of the consecrations, and of the sacrifice of the peace offerings;

1 Corinthians 5:7 KJV 1900

Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us:

Leviticus 6:12 KJV 1900

And the fire upon the altar shall be burning in it; it shall not be put out: and the priest shall burn wood on it every morning, and lay the burnt offering in order upon it; and he shall burn thereon the fat of the peace offerings.

Leviticus 6:25 KJV 1900

Speak unto Aaron and to his sons, saying, This is the law of the sin offering: In the place where the burnt offering is killed shall the sin offering be killed before the Lord: it is most holy.