Substitutionary sacrifice

How can an offering that owes nothing discharge a debt that someone else has incurred?

A debt of money can be paid by anyone. If a stranger settles what you owe the bank, the bank is satisfied, because what it was owed was a quantity and quantities do not care where they came from. But guilt looks stubbornly unlike that. The whole point of holding someone responsible seems to be that they bear it.

And yet entire ritual systems are built on the opposite claim: that an animal which has done nothing, and owes nothing, can be brought forward and something is thereby settled. So either those systems are confused about what a debt is, or the word "discharge" is doing work we have not looked at closely.

Start by separating two kinds of obligation. Money is fungible, so it transfers freely — the creditor is indifferent to the source. A punishment is usually thought not to transfer at all, because bearing it is precisely what is being demanded of that person. Which kind is a ritual debt? If it were the first, no ritual would be needed; a payment would do. If it were strictly the second, no substitute could ever work. So the interesting possibility is that it is neither, and that the rite is not a transfer at all.

Look, then, at what the rite actually does. In Leviticus, the offerer lays a hand on the head of the animal (Lev 1:4); on the Day of Atonement the high priest lays both hands on the goat and confesses over it (Lev 16:21). Ask what that gesture is for. It moves nothing, and it does not resemble payment. It is a public act of designation — this animal, in front of witnesses, is named as standing for this person.

If designation is the move, a second question follows immediately. Can I designate a representative unilaterally? Clearly not. A proxy I appoint binds nobody unless the body receiving the proxy recognises it. So look at the eligibility rules — the animal must be of the right kind, unblemished, brought to the right place, handled by the right person. Notice what these are not: they are not conditions of resemblance to the sinner. They are conditions of acceptance by the party being addressed. Substitution here is a two-sided arrangement, and the receiving side sets the terms.

Now the odd clause in our question — that the offering owes nothing — stops looking like a paradox and starts looking like a requirement. Why must the victim be unblemished? Consider a representative who carries liabilities of its own. Anything that happened to it could be booked against its own account, and the accounting would be ambiguous. Innocence is what makes the transaction legible: whatever the offering undergoes can only be read as undergone on someone else's behalf.

Is that what the ancient texts themselves say? Here we should be careful, because it is genuinely disputed. Jacob Milgrom argued at length that the blood rites of Leviticus purge the sanctuary of accumulated impurity rather than transfer guilt onto a victim — on that reading the thing cleansed is a place, not a person, and "substitution" is the wrong frame entirely. The scapegoat of Leviticus 16 is the clearest carrier text in the Hebrew Bible, and it is worth noticing that the scapegoat is not sacrificed at all; it is driven away alive. Later theology then made the logic explicit in two incompatible ways: Anselm, around 1098, cast it as satisfaction of honour owed, while Reformation penal substitution cast it as the penalty itself borne by another. That the two disagree about what is transferred is good evidence that nothing about the transfer was ever obvious.

So what is actually discharged? Not the fact of the act — no rite unhappens anything. What changes is standing: the relation between the offender and the offended party is moved from one condition to another, by an act the offended party has agreed in advance to count.

Three things the picture is often taken to mean, and does not. First, guilt is not a substance being poured from one container to another; the texts describe acts of naming and acceptance, not transfusion. Second, the offering is not a bribe — in most of these systems the acceptable offerings are specified, and often understood as provided by the offended party, which makes the rite a mode of pardon rather than a purchase. Third, it does not run automatically. The same body of law denies the sacrificial remedy to deliberate, defiant wrongdoing (Num 15:30), and the prophetic and psalmic texts subordinate the rite to a change in the offerer (Isa 1:11-17; Ps 51:16-17). A rite that could be worked mechanically against the offended party's will would not be representation at all — it would be coercion.

• Why the scapegoat is sent away rather than killed, and whether that makes it a different mechanism from the sin offering.
• Anselm's satisfaction against Reformation penal substitution: what each says is actually transferred.
• Rene Girard's account, which treats the scapegoat as a social device for discharging communal violence rather than a debt at all.
• Secular descendants — corporate liability, fines paid by an employer, insurance — and whether they are representation or plain fungibility.

Every term the collection defines is gathered in the glossary.