Context: Second Corinthians 5:21 is one of the most concentrated soteriological statements in the NT, functioning as the theological climax of Paul's argument about the ministry of reconciliation (5:14-21). The verse presents a double imputation: God made Christ "who knew no sin" to be "sin" (hamartia) on our behalf, so that in Him we might become "the righteousness of God." The term hamartia ("sin") likely carries a double resonance — both "sin" in the abstract sense and "sin offering," since the LXX regularly uses hamartia to translate the Hebrew hatta't (sin offering) in Leviticus 4-5. This dual meaning allows Paul to simultaneously affirm that Christ was treated as sin (bearing its penalty) and that He functioned as the sin offering (providing atonement). The verse is grounded in Christ's sinlessness ("who knew no sin") — the prerequisite for effective substitution, echoing the Levitical requirement of an unblemished sacrificial animal (Leviticus 4:3, 23, 28). Within the broader argument, v. 21 explains how God accomplished the reconciliation described in vv. 18-20: through the great exchange of sin and righteousness between Christ and believers. Paul writes amid a defense of his apostolic ministry against critics, grounding his authority in the gospel's objective reality: God's reconciling work in Christ precedes and enables human response.
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Christological Connection: The Levitical sin offering (hatta't) operated through the transfer of guilt from the offerer to the unblemished animal, which then bore the penalty of sin through its death. The animal's perfection was essential — it had to be "without blemish" (Leviticus 4:3, 23, 28) — because a flawed sacrifice could not adequately represent the holiness required for atonement. Yet the Levitical system had an inherent limitation: animal blood could not effect genuine moral transfer. The sin offering pictured the removal of sin but could not actually remove it from the human conscience (Hebrews 10:4, "it is impossible for the blood of bulls and goats to take away sins").
The phrase "made him to be sin" unveils the cross's horror: the sinless One experiences sin's full penalty. Christ didn't merely associate with sinners or suffer unjustly; He became sin in the sense the Levitical sin offering was called "sin"—identifying completely with sin's guilt and curse. Isaiah prophesied: "the LORD has laid on him the iniquity of us all" (Isaiah 53:6). Peter affirms: "He himself bore our sins in his body on the tree" (1 Peter 2:24). This wasn't symbolic gesture but actual transaction: "Christ redeemed us from the curse of the law by becoming a curse for us" (Galatians 3:13).
Christ's sinlessness—"him who knew no sin"—qualifies Him as the acceptable sacrifice. He "committed no sin, neither was deceit found in his mouth" (1 Peter 2:22). He is "holy, innocent, unstained, separated from sinners" (Hebrews 7:26). Tempted in every way yet without sin (Hebrews 4:15), Jesus lived the perfectly righteous life humanity failed to achieve. His sinlessness makes His sacrifice efficacious—spotless Lamb slain for blemished sheep.
The divine initiative—"God made him"—emphasizes trinitarian love. The Father sent the Son (1 John 4:10: "God... sent his Son to be the propitiation for our sins"); the Son willingly came (John 10:18: "No one takes it from me, but I lay it down of my own accord"). God didn't spare His own Son but gave Him up for us all (Romans 8:32). The atonement originates in divine love, not human merit: "In this is love, not that we have loved God but that he loved us and sent his Son to be the propitiation for our sins" (1 John 4:10).
Paul's statement achieves what the sin offering could only foreshadow. The "great exchange" operates in two directions simultaneously: Christ who "knew no sin" takes on sin (made hamartia), and believers in Christ receive "the righteousness of God." This double imputation — sin transferred to Christ, righteousness transferred to believers — fulfills the sin offering's ritual logic while vastly exceeding it. The sin offering transferred guilt symbolically to an unconscious animal; Christ bears sin consciously and voluntarily as a person "who knew no sin." The sin offering provided ritual purity; Christ provides positive righteousness — not merely the removal of guilt but the bestowal of a righteous status. Where Isaiah 53:11 promised that the righteous servant would "justify many," Paul declares the mechanism: in Christ, believers become "the righteousness of God."
The great exchange reverses the Fall. Adam's sin brought condemnation and death to all (Romans 5:18); Christ's obedience brings justification and life. "As by one man's disobedience the many were made sinners, so by one man's obedience the many will be made righteous" (Romans 5:19). Christ becomes what we are (sin-bearer) that we might become what He is (righteous). He takes our filthy garments and clothes us with His righteousness—Zechariah's vision realized (Zechariah 3:4: "Remove the filthy garments... Behold, I have taken your iniquity away from you, and I will clothe you with pure vestments").
The "righteousness of God" believers receive isn't merely legal standing (though it includes that) but active divine righteousness—"the righteousness from God that depends on faith" (Philippians 3:9). This righteousness enables believers to "become the righteousness of God in him"—not just declared righteous but increasingly conformed to Christ's image. Justification (forensic declaration) and sanctification (actual transformation) both flow from union with Christ. "In him" (en autō) indicates the location of this righteousness—found only in Christ, never in self.
The cross's cry—"My God, my God, why have you forsaken me?" (Matthew 27:46)—unveils what "made him to be sin" meant experientially. Christ suffered God-forsakenness, the ultimate consequence of sin: separation from the Father. The Holy One endured hell's essence (abandonment by God) that sinners might experience heaven's essence (fellowship with God). The three hours of darkness symbolized judgment's weight: "God was in Christ reconciling the world to himself, not counting their trespasses against them" (v. 19)—because He counted them against Christ instead.
The exchange achieves complete reversal. Believers' sins—past, present, future—were imputed to Christ at Calvary; Christ's righteousness—perfect obedience, spotless life—is imputed to believers at conversion. God sees believers "in Christ," covered by His righteousness: "there is therefore now no condemnation for those who are in Christ Jesus" (Romans 8:1). The basis: "For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God." The sin offering fulfilled; the great exchange completed; reconciliation accomplished.
The already/not-yet eschatological framework is implied: believers have already become God's righteousness positionally (justified in Christ), they are being conformed to that righteousness experientially (sanctification), and they will be fully conformed to it at Christ's return (glorification — Romans 8:30).
Connection Method(s): Typology (Direct, Forward-Looking) — The sin offering ritual of Leviticus 4-5 is a divinely instituted sacrificial practice that historically prefigures Christ's sin-bearing work. It is "forward-looking" because the structural limitations of the system — animal substitutes, repeated offerings, inability to remove sin from the conscience — create OT-internal indicators that a greater sin-bearer is needed. All five criteria met: analogical correspondence (both involve an unblemished substitute bearing the sin of the offerer), historicity (both historical realities), escalation (from unconscious animal to conscious divine person, from ritual purification to actual righteousness), pointing-forwardness (Hebrews 10:1-4 confirms the system's inadequacy was by design), retrospective interpretation (Paul's hamartia language connects directly to the sin offering). Also Promise-Fulfillment — Isaiah 53:10-11's promise that the servant's life would be "a guilt offering" ('asham) and that he would "justify many" finds its fulfillment in the double imputation Paul describes.
Trajectory Table: 147 - Sin Offering (Christ Bearing Our Sins)