A. Faith justifies a sinner in the sight of God, not because of those other graces which do always accompany it, or of good works that are the fruits of it (Gal. 3:11; Rom. 3:28), nor as if the grace of faith, or any act thereof, were imputed to him for his justification; but only as it is an instrument by which he receiveth and applieth Christ and his righteousness.
Faith is the means which God has ordained for the elect in order that he may declare them righteous in his sight. Man, unfortunately, assumes he must perform, to achieve a perfect score when it comes to keeping God’s moral law. In this assumption, he is sadly mistaken. Paul writes in Galatians 3:11, “no one is justified before God by the law, for ‘The righteous shall live by faith.’” Later in his great exposition of the gospel in his epistle to the Romans, Paul echoes this truth when he writes, “For we hold that one is justified by faith apart from works of the law” (Romans 3:28).
In keeping with this Pauline distinction between faith and the law, the framers of the Westminster Standards of 1649 write in their Larger Catechism, “Faith justifies a sinner in the sight of God, not because of those other graces which do always accompany it, or of good works that are the fruits of it…” (Westminster Larger Catechism, Q&A #73). Here they write that good works are the fruit of faith, not the condition the elect must meet so God will declare them righteous in his sight (justify them). The catechism answer also denies that the other graces that accompany faith are the way we receive God’s justifying declaration of righteousness. For example, graces such as hope, love, joy, or any others are excluded, along with good works, as the basis on which faith justifies the sinner.
In short, faith does not justify because of good works; rather, good works are the result of justification by faith alone.