Having a biblical view of justification should also produce overwhelming thanksgiving. Knowing that justification by faith is apart from works, that justification is a gift of God, and that we are pardoned, declared righteous, and adopted into the family of God should generate within us a heart of eternal thankfulness. This thankfulness then translates into a life of consistent worship of the God, who, in His infinite wisdom, devised a way that depraved sinners might be accepted in the Beloved.
The Reformer John Calvin (1509–64) ardently declared the doctrine of justification by faith alone to be “the principle hinge by which [the Christian] religion is supported” (Institutes 3.11.1). Known as the material principle of the sixteenth-century Reformation, the doctrine of justification by faith alone was at the epicenter of the battle to bring needed reform to the church. This biblical doctrine is central to preserving an accurate understanding of the gospel even as we find it so clearly taught in Paul’s letters to the churches of Rome and Galatia.
As we approach the Bible’s teaching on justification, it is vital that we comprehend the finer points of the doctrine. To put it bluntly, if we get justification wrong, we get the gospel wrong. Thankfully, we have a rich and faithful heritage of believers who have courageously upheld Scripture’s teaching on justification by faith alone. The Westminster Shorter Catechism presents a clear and succinct definition of justification:
Justification is an act of God’s free grace, wherein he pardoneth all our sins, and accepteth us as righteous in his sight, only for the righteousness of God imputed to us, and received by faith alone (WSC 33).
In other words, justification is a legal act by God, based on the imputation of the righteousness of Christ, by means of our faith (granted as a gift from God).
However, the practical nature of the doctrine of justification is often overlooked and dismissed. Sometimes doctrine can become so heavy with terms and concepts that we miss just how applicable doctrine really is. While there may be more that can be applied from an informed understanding, there are no less than four practical applications of the doctrine of justification by faith alone.
Assurance
The first practical application of the doctrine of justification by faith alone is assurance. Frankly, there will be days when we simply won’t feel justified, when we won’t feel like a Christian. We will have off days, down days, shaky days, sinful days, days on which the question haunts our minds, “Am I even a Christian?” The doctrine of justification by faith alone proclaims loudly, through the fog of doubt, that we have been born again and are “in Christ” (Gal. 2:20). Christ has completed His redemptive work, satisfied the justice of God the Father, and sealed us with His Holy Spirit. Justification assures us that there is never a need for re-justification. Rather, God justifies us by His grace. Before the courtroom of heaven, God has declared us, depraved sinners, to be “justified and righteous.” Paul declares, “Therefore, since we have been justified by faith, we have peace with God through our Lord Jesus Christ” (Rom. 5:1). The doctrine of justification gives us the assurance to know that “[He is] just and the justifier of the one who has faith in Jesus” (3:26).
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