Imputed Righteousness and Union with Christ: Pauline Participation, Justification, and the Question of Eternal Security

This paper reexamines the doctrine of imputed righteousness by shifting attention from the source and instrument of righteousness to the mechanism by which it becomes the believer’s. It accepts that righteousness is God’s gift and that it is received by faith, but asks whether Christ’s obedience is permanently transferred to the believer as an independently possessed forensic status or whether righteousness is shared only through union with Christ. The argument begins with Paul’s pervasive “in Christ” and “in him” language and develops a participatory account in which the believer receives salvation’s benefits by being joined to Christ. It then considers New Testament passages that present continued standing as conditioned upon abiding, defines the “righteousness of God” as God’s covenant-faithful saving action, and rereads Philippians 3:9, Romans 3:21, and 2 Corinthians 5:21 within that framework. The discussion of 2 Corinthians 5:21 gives attention both to the language of believers “becoming” the righteousness of God in Christ and to the verse’s immediate context in Paul’s ministry of reconciliation. The paper does not deny that Scripture speaks of righteousness being reckoned to believers. Its central claim is that such reckoning never floats free from union with Christ. On this account, the direct inference from imputation to irreversible eternal security does not follow. Christian assurance remains real and present, but it rests in the Spirit’s witness and an abiding relationship with the Righteous One.