Simul Justus et Peccator
As taught in the Lutheran tradition
The reality that the Christian is simultaneously a 100% justified saint and a 100% sinner.
The phrase Simul Justus et Peccator—simultaneously righteous and a sinner—is not merely a clever theological paradox; it is the beating heart of the Lutheran Reformation’s understanding of the Christian life. At its core, this doctrine answers the most agonizing question a sensitive conscience can ask: "How can I be a child of God when I still feel the pull of the world, the flesh, and the devil so strongly within me?" For Martin Luther and the tradition that bears his name, the answer is not found in a gradual improvement of the moral character until sin is extinguished, but in a radical dual identity. The Christian is, at one and the same time, 100% a sinner in themselves (according to the Law) and 100% righteous in Christ (according to the Gospel).
By the end of this lesson
- **Identify** the Latin origins and theological definitions of the phrase *Simul Justus et Peccator* within the Lutheran confessional documents.
- **Distinguish** between "Active Righteousness" (before the world) and "Passive Righteousness" (before God) to explain how a believer remains a sinner while being declared a saint.
- **Explain** the Lutheran interpretation of Romans 7 as the standard experience of the regenerate Christian rather than a pre-conversion state.
- **Articulate** the relationship between the "Old Adam" and the "New Man," specifically focusing on the necessity of daily contrition and repentance.
- **Trace** the historical rejection of "synergism" in the *Formula of Concord* and its impact on the doctrine of justification.
- **Defend** the doctrine of *Simul* against the critiques of "progressive sanctification" or "perfectionism" found in other Christian traditions.
- **Apply** the comfort of being *Simul Justus* to the daily struggles of Christian vocation, ethics, and the assurance of salvation.
- **Compare** the Lutheran view of the "internal struggle" with the Roman Catholic and Reformed understandings of concupiscence and sanctification.
Scripture
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