WHAT IS THE DIFFERENCE BETWEEN JUSTIFICATION AND SANCTIFICATION?

Justification is distinct from sanctification because in justification God does not make the sinner righteous; He declares that person righteous (Romans 3:28; Galatians 2:16). Notice how justification and sanctification are distinct from one another:

Justification imputes Christ’s righteousness to the sinner’s account (Romans 4:11b);

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Sanctification imparts righteousness to the sinner personally and practically (Romans 6:1-7; 8:11-14).

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Justification takes place outside sinners and changes their standing (Romans 5:1-2,

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Sanctification  is internal and changes the believer’s state (Romans 6:19).

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Justification is an event, sanctification a process.

Those two must be distinguished but can never be separated. God does not justify whom He does not sanctify, and He does not sanctify whom He does not justify. Both are essential elements of salvation.

Why differentiate between them at all? If justification and sanctification are so closely related that you can’t have one without the other, why bother to define them differently? That question was the central issue between Roman Catholicism and the the true believers
Im the sixteenth century, and it remains the main front in renewed attacks against justification.

Justification in Roman Catholic Doctrine

Roman Catholicism blends its doctrines of sanctification and justification. Catholic theology views justification as an infusion of grace that makes the sinner righteous. In Catholic theology, then, the ground of justification is something made good within the sinner–not the imputed righteousness of Christ.

The Council of Trent, Rome’s response to the Reformation, pronounced anathema on anyone who says “that the [sinner] is justified by faith alone”  This means that nothing else is required by way of cooperation in the acquisition of the grace of justification. The Catholic council ruled “Justification … is not remission of sins merely, but also the sanctification and renewal of the inward man, through the voluntary reception of the grace, and of the gifts, whereby man of unjust becomes just.” So Catholic theology confuses the concepts of justification and sanctification and substitutes the righteousness of the believer for the righteousness of Christ.

Am I Just splitting Hairs?

The difference between Rome and the Reformers is no example of theological hair-splitting. The corruption of the doctrine of justification results in several other grievous theological errors.

If sanctification is included in justification, the justification is a process, not an event. That makes justification progressive, not complete. Our standing before God is then based on subjective experience, not secured by an objective declaration. Justification can therefore be experienced and then lost. Assurance of salvation in this life becomes practically impossible because security can’t be guaranteed. The ground of justification ultimately is the sinner’s own continuing present virtue, not Christ’s perfect righteousness and His atoning work.

What’s so important about the doctrine of justification by faith alone? It is the doctrine upon which the confessing church stands or falls. Without it there is no salvation, no sanctification, no glorification–nothing. You wouldn’t know it to look at the state of Christianity today, but it really is that important.