The Trespass offering.
In the Trespass offering we see repayment and restitution for the damages caused by sin. Not a mere forebearance, but a demand for payment, a making of amends, i.e. appeasement, without which, there is no forgiveness.
Leviticus 5:15-16 If a soul commit a trespass, and sin through ignorance, in the holy things of the LORD; then he shall bring for his trespass unto the LORD a ram without blemish out of the flocks, with thy estimation by shekels of silver, after the shekel of the sanctuary, for a trespass offering: And he shall make amends for the harm that he hath done in the holy thing, and shall add the fifth part thereto, and give it unto the priest: and the priest shall make an atonement for him with the ram of the trespass offering, and it shall be forgiven him.
The fifth part is a double tithe. The first tithe, the righteous requirement of the law, the second tithe, the debt incurred by sin.
Not only for the harm done unto the holy things of YHWH, but also unto the things of the penitent's neighbor; that is, to man.
Leviticus 6:5 Or all that about which he hath sworn falsely; he shall even restore it in the principal, and shall add the fifth part more thereto, and give it unto him to whom it appertaineth, in the day of his trespass offering.
Here it is revealed that in Christ's one offering, amends are made for the harm resulting from sin. To put it another way, the wages of sin are paid, the punitive damages are paid, and God's wrath, the just and righteous response to sin, is appeased.
Our sin, and its debt to God and to man, are paid for in the one offering of Christ.