Leviticus is fulfilled in Christ

Leviticus 16:23-34
This is to be a lasting ordinance for you: On the tenth day of the seventh month you must deny yourselves and not do any work—whether native-bornor a foreigner residing among you— because on this day atonement will be made for you, to cleanse you. Then, before the Lord, you will be clean from all your sins.
Atonement is to be made once a year for all the sins of the Israelites.
So year after year, Israel was reminded of the sin which cut them off from God's presence - of the need for atonement to bring forgiveness and restore relations.
The New Testament Letter to the Hebrews sees Leviticus fulfilled in Christ.
The trappings(服飾,外部標誌) of the first covenant are 'symbolic, pointing to the present time'. Christ, the high priest of the 'new covenant', has entered, not a 'sactuary made by human hands', but 'heaven itself, to appear before God on our behalf', appearing 'once for all at the climax(高潮) of history to abolish sin by the sacrifice of himself'.
Outside camp: Neither offering might be eaten, since no one was to eat any of his own sin-offering, and Aaron identities himself with the people in their sin-offering.
How?
Jesus Christ is my Savior and this is an everlasting good news to all men.