The Nature of Saving Faith
As taught in the Lutheran tradition
Faith not as a human work or decision, but as trust (fiducia) in the promise of the Gospel.
What is faith? Within the Lutheran tradition, this question is not merely academic or psychological; it is the "article upon which the church stands or falls." To understand the nature of saving faith (fides salvifica), one must first grapple with the fundamental problem of the human condition as understood by the Reformation: the total inability of the fallen human will to contribute anything to its own salvation. If salvation is "by grace alone," then the mechanism by which that grace is received—faith—must itself be of a specific nature. It cannot be a "work" we perform, a "decision" we make from our own power, or a "quality" of holiness inherent in our souls.
By the end of this lesson
- **Distinguish** between *fides historica* (historical knowledge) and *fides salvifica* (saving trust/fiducia).
- **Identify** the "External Word" (Law and Gospel) as the sole means by which the Holy Spirit creates saving faith.
- **Explain** the concept of faith as the *instrumentum passivum* (passive instrument) in the context of justification.
- **Articulate** the relationship between the certainty of salvation and the object of faith (Christ) rather than the strength of the believer's subjective feelings.
- **Trace** the historical development of the doctrine from the New Testament through the Lutheran Confessions, specifically the Apology of the Augsburg Confession.
- **Defend** the monergistic nature of faith against synergistic "decision theology" or "free will" models of conversion.
- **Compare** the Lutheran view of "faith alone" with the medieval concept of "faith formed by love" (*fides caritate formata*).
- **Apply** the doctrine of saving faith to the pastoral care of a "terrified conscience" that doubts its own sincerity or strength.
Scripture
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