Sanctification by Faith

In his Catechism for the Church of Geneva (answer # 126), John Calvin wrote, "To believe in Christ is as much to say as to receive Christ in such sort as He doeth give Himself unto us; now this is an evident thing, that Christ doeth not only promise to deliver us from death and to restore unto us the favor of God His Father through the only merits of His innocence, but also He promiseth to make us new creatures by His Spirit, to the end that ye should lead a holy conversation in all good works, so that these must be joined together, except we would divide Christ from Himself." In simpler terms, Jesus does not save  man from the wrath of God without also making him a new creation with good works consistent with that new nature. 

The biblical basis for Calvin's statement comes from II Corinthians 5:17-21: "If anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come. All this is from God, who, through Christ, reconciled us to Himself and gave us the ministry of reconciliation; that is, in Christ, God was reconciling the world to Himself, not counting their trespasses against them, and entrusting to us the message of reconciliation. Therefore, we are ambassadors for Christ, God making His appeal through us. We implore you on behalf of Christ, be reconciled to God. For our sake, He made Him to be sin who knew no sin, so that in Him we might become the righteousness of God." This is a description of the legal exchange that happens at the moment that a sinner experiences saving faith. He has an instantaneous exchange of status with Jesus, receiving the righteousness of Jesus in place of the sin that is ours by nature. That is why Jesus could say to the thief on the cross, "Today you will be with Me in Paradise" (Luke 23:43). The moment he believed, that man had all of the righteousness of Jesus. He was as justified as any saint at a hundred years old, even though he was never given the opportunity to do a single good work. 

However, for the saint who remains in this life, for as long as he remains in this life, there will be good works. After reminding the Christians that their justification is through faith alone, not at all by works (Ephesians 2:8-9), Paul tells the Church at Ephesus (verse 10), "We are His workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them." While justification is instantaneous, as we see in the example of the thief on the cross, this new walking in good works, which we call sanctification, is a process lasting as long as the Christian remains in this life. The Westminster Larger Catechism Answer #75 defines sanctification this way: "Sanctification is a work of God's grace, whereby they whom God hath, before the foundation of the world, chosen to be holy, through the powerful operation of His Spirit applying the death and resurrection of Christ unto them, renewed in their whole man after the image of God; having the seeds of repentance unto life, and all other saving graces, put into their hearts, and those graces so stirred up, increased, and strengthened, as that they more and more die unto sin, and rise unto newness of life."

Yet we are never to mistake the order of these events. We can never do good works to gain the favor of God. It is only after a man is justified through faith alone in Jesus alone that he is then able to do good works. This is the point of Paul's epistle to the Galatians. "We know that a person is not justified by works of the law but through faith in Jesus Christ, so we also have believed in Christ Jesus, in order to be justified by faith in Christ and not by works of the law, because by works of the law no one will be justified. But if, in our endeavor to be justified in Christ, we, too, were found to be sinners, is Christ then a servant of sin? Certainly not! For if I rebuild what I tore down, I prove myself to be a transgressor. For through the law I died to the law, so that I might live to God. I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me. I do not nullify the grace of God, for is righteousness were through the law, then Christ died for no purpose" (Galatians 2:15-21). 

Paul's challenge to the erring Galatians is, if I was justified by faith alone in Jesus, how would I now turn aside from faith and seek to live the Christian life by my works? No, he says! My Christian life, too, is by faith alone in Christ alone! My good works are not by my own moral striving, but arise from the new life of Christ within me. Sanctification is by faith just as much as justification is by faith!