What is 'expiation' in Christianity?
What does "expiation" mean in Christian theology?

Overview of Expiation

Expiation refers to the removal or covering of sin, signifying how guilt is taken away so that an individual may stand blameless before God. Within Christian theology, this concept is central to the doctrine of atonement. It emphasizes that sin creates separation from God, yet through an appointed, divinely ordained mechanism, that separation is overcome and the individual is restored to fellowship with the Creator.


Biblical Terminology

In the Old Testament, the Hebrew term often associated with expiation is “kippur,” commonly translated as “atonement.” Throughout the Book of Leviticus, especially in connection with the Day of Atonement (Yom Kippur), this idea underlies sacrifices that cover Israel’s sins. The Day of Atonement ceremonies (Leviticus 16) vividly illustrate how the high priest would sprinkle blood in the Holy of Holies, making “atonement for himself, his household, and the whole assembly of Israel” (Leviticus 16:17) as a symbolic purging of sin.

In the New Testament, the primary Greek term often rendered in English translations as “propitiation” or “atoning sacrifice” can also carry the dimension of expiation. For instance, 1 John 2:2 states, “He Himself is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.” While the word “atoning sacrifice” includes the concept of removing divine wrath, it also suggests the cleansing or expiation of sin.


Old Testament Foundations

1. Sacrificial System: The Mosaic Law instituted offerings (burnt offerings, sin offerings, and guilt offerings) to address the people’s sins. By laying hands on the head of the sacrificial animal (Leviticus 4:29), the worshiper symbolically transferred guilt to the sacrifice, while the shedding of blood signified the life given in place of the sinner.

2. The Day of Atonement Ritual: Once a year, the high priest offered sacrifices on behalf of the entire nation (Leviticus 16). Two goats played a central role: one sacrificed, and the other (the scapegoat) symbolically carried Israel’s sins into the wilderness (Leviticus 16:10). This pointed forward to a final, perfect form of expiation.

3. Foreshadowing of Christ: These sacrifices were never meant as a complete remedy for sin (Hebrews 10:4). Instead, they foreshadowed a future, greater sacrifice—one that fully and permanently would remove the penalty of sin.

Archaeological discoveries, such as ancient altars at sites like Tel Arad, help illustrate that the sacrificial practices described in the Old Testament reflect genuine ancient Israelite customs, supporting the historical veracity of these Scriptures.


New Testament Fulfillment

1. Christ’s Sacrifice as Ultimate Expiation: Hebrews 9:26 says Christ “has appeared once for all at the culmination of the ages to do away with sin by sacrificing Himself.” This statement captures the idea of expiation—Christ doing away with sin. His death on the cross stands in continuity with, yet surpasses, the Old Testament sacrifices.

2. Blood of Christ Cleansing Believers: The New Testament consistently emphasizes the efficacy of Jesus’ shed blood to cleanse individuals fully. Ephesians 1:7 states, “In Him we have redemption through His blood, the forgiveness of sins.” The Greek behind “forgiveness” and “redemption” communicates that the debt of sin is canceled and guarantees restored relationship with God.

3. Union with Christ in Righteousness: Through expiation, believers are not merely freed from guilt but also granted the righteousness of Christ (2 Corinthians 5:21). By removing sin’s penalty, Christ opens the way to eternal fellowship with God.

New Testament manuscript evidence, discovered in papyri such as P52 (dated to the early second century), illustrates that the doctrine of Christ’s sacrificial death and expiation of sin is firmly rooted near the time of its original composition. These manuscripts confirm the reliability of texts conveying that Jesus died and rose again for humanity’s redemption.


Expiation in Contrast to Propitiation

Some translations distinguish “expiation” (the removal of sin) from “propitiation” (the appeasement of God’s righteous wrath). However, both concepts appear in the biblical text and often overlap:

Expiation: Focuses on how the guilt of sin is taken away.

Propitiation: Focuses on how the rightful judgment of God is satisfied.

Both are crucial in a full understanding of atonement, showing that God’s justice is upheld and that the sinner is cleansed.


Historical and Theological Context

1. Early Church Teachings: Early Christian writings (e.g., the Epistle of Barnabas and early creeds) reflected the belief that Christ’s death covers and removes sin’s penalty, consistent with the biblical emphasis on expiation.

2. Reformation and Beyond: Throughout Church history, theologians affirmed that people need sin removed to be reconciled to God. The idea of expiation reinforces the magnitude of human sinfulness and the necessity of divine grace.

3. Modern-Day Implications: Miraculous transformations, globally reported healings, and the continuing growth of Christian communities worldwide suggest that the same power that removed sin through Christ remains active. Such events, documented by field clinicians and mission organizations, highlight that the God who forgives sin also intervenes in the physical realm, underscoring God’s ongoing authority over creation.


Practical Applications

1. Assurance of Forgiveness: Expiation provides believers with confidence that their guilt is completely removed (Romans 8:1). They can live free from the weight of condemnation, certain that Christ’s sacrifice effectively expunges sin.

2. Call to Holiness: Since Christ’s sacrifice purges sin, believers responding in gratitude seek a life consistent with that freedom—striving for holiness (1 Peter 1:15). Expiation does not encourage complacency in sin; rather, it inspires dedication and obedience to God.

3. Reconciliation in Relationships: The principle of expiation can transform interpersonal dynamics, encouraging believers to extend forgiveness to others as they have been forgiven (Ephesians 4:32). Just as guilt is removed by Christ, Christians are called to restore relationships and let go of grievances.


Conclusion

Expiation in Christian theology is the vital understanding that God removes the guilt of sin through a once-for-all sacrifice accomplished by Christ. This doctrine emerges from the Old Testament sacrificial system, finds its ultimate fulfillment at the cross, and resonates throughout the New Testament teaching on salvation. Its historical and manuscript support, seen in everything from the Day of Atonement to early Christian documentation, underscores the consistent credibility of Scripture’s portrayal of God’s plan for humanity’s redemption.

From the earliest sacrifices in Leviticus to Christ’s triumphant resurrection, expiation demonstrates how God covers sin and restores fellowship. It reassures believers of full forgiveness while calling them to holy living and a life devoted to glorifying Him.

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