Substitution

Substitution — the principle that one person or animal may bear penalty, guilt, or responsibility on behalf of another — is woven into the fabric of Levitical ritual and reaches its theological climax in the atoning death of Christ. The Day of Atonement ritual of the scapegoat expressed substitution most vividly: Aaron "shall lay both his hands on the head of the live goat, and confess over it all the iniquities of the people of Israel... putting them on the head of the goat, and sending it away into the wilderness" (Leviticus 16:21–22). The slaughtered goat's blood was brought into the Most Holy Place as a sin offering; the living goat carried the sins into the wilderness. Together they enacted the transfer of guilt from the covenant community to a substitute.

The burnt offering system assumed substitution at its foundation: Leviticus 1:4 states that the worshiper "shall lay his hand on the head of the burnt offering, and it shall be accepted for him to make atonement for him." The New Testament announces the definitive substitution in the language of Isaiah 53:5–6: "He was pierced for our transgressions; he was crushed for our iniquities... and the LORD has laid on him the iniquity of us all." Paul makes the substitutionary logic explicit in its most concentrated formulation: "God made him who had no sin to be sin for us, so that in him we might become the righteousness of God" (2 Corinthians 5:21). The doctrine of penal substitutionary atonement, grounded in these texts, became the organizing center of Protestant soteriology and the subject of much contemporary theological discussion.