Justification and sanctification are not the same thing. The basic dictionary definition of justification is “the action of showing something to be right or reasonable.” The theological definition is “the action of declaring or making righteous in the sight of God.” Sanctification is an ongoing process. It comes from the Greek word hagiazo, which means to be separate or set apart. As we’ll see later, sanctification is not the same as salvation. We’ll also see that justification is a transaction and sanctification is a transformation.
Justification is a Transaction
In Christian doctrine, justification is God’s act of removing the guilt and penalty of sin, and imputing His righteousness through the atoning sacrifice of Jesus Christ. Romans 3:22-24 says, “This righteousness is given through faith in Jesus Christ to all who believe. There is no difference between Jew and Gentile, for all have sinned and fall short of the glory of God, and all are justified freely by his grace through the redemption that came by Christ Jesus” (NIV).
Eugene Peterson provides the following translation of Romans 3:21-24: “But in our time something new has been added. What Moses and the prophets witnessed to all those years has happened. The God-setting-things-right that we read about has become Jesus-setting-things-right for us. And not only for us, but for everyone who believes in him. For there is no difference between us and them in this. Since we’ve compiled this long and sorry record as sinners (both us and them) and proved that we are utterly incapable of living the glorious lives God wills for us, God did it for us. Out of sheer generosity he put us in right standing with himself. A pure gift. He got us out of the mess we’re in and restored us to where he always wanted us to be. And he did it by means of Jesus Christ” (MSG) [Emphasis added].
We are justified, declared righteous, at the moment of our salvation. Justification does not make us righteous, but rather pronounces us righteous. Our righteousness comes from placing our faith in the finished work of Jesus Christ. His sacrifice covers our sin, allowing God to see us as perfect and unblemished. Certainly, it should be obvious that this is something we simply cannot accomplish on our own. Martin Luther, in his Commentary on Romans, says, “St. Augustine writes in the ninth chapter of his book Concerning the Spirit and the Letter: ‘He does not speak of the righteousness of God, by which God is righteous, but of that with which He clothes a person when He justifies the ungodly.’ Again in the eleventh chapter he comments: ‘But now the righteousness of God without the law is manifested; that is, God imparts it to the believer by the Spirit of grace without the work of the Law, or without the help of the Law. Through the Law God opens man’s eyes so that he sees his helplessness and by faith takes refuge to His mercy and so is healed.'”
Romans 5:18-19 sums up this concept quite nicely. “Consequently, just as one trespass resulted in condemnation for all people, so also one righteous act resulted in justification and life for all people. For just as through the disobedience of the one man the many were made sinners, so also through the obedience of the one man the one man the many were made righteous” (NIV). It is because of justification that the peace of God can rule in our lives. It is because of justification that believers can have full assurance of their salvation. It is the fact of justification that enables God to begin the process of sanctification—the process by which God makes us in reality what we already are positionally. “Therefore, since we have been justified through faith, we have peace with God through our Lord Jesus Christ, through whom we have gained access by faith into this grace in which we now stand. And we boast in the hope of the glory of God” (Romans 5:1-2, NIV).
Sanctification is a Transformation
The very moment we are saved in Christ we are also immediately sanctified and begin the process of being conformed to the image of Christ. As God’s children, we are set apart from that moment to carry out His divine purposes. Hebrews 10:14 says, “For by one sacrifice he has made perfect forever those who are being made holy” (NIV). Peterson’s translation says, “It was a perfect sacrifice by a perfect person to perfect some very imperfect people. By that single offering, he did everything that needed to be done for everyone who takes part in the purifying process” (MSG).
Sanctification is different than salvation. It is important to differentiate between the two concepts. Jesus gave his life on the cross as a sacrifice for our sins. His blood washes away our sins and frees us from eternal suffering and damnation. Believers are save because of what Christ has already done. We can do absolutely nothing to earn salvation. Sanctification occurs as a result of salvation. But sanctification does not stop there. Instead, it is a progressive process that continues in a believer’s life. This is because even as Christians we still have the capacity to sin. We find ourselves in a spiritual battle the moment we confess Christ as Messiah and decide to follow Him. Paul describes this inner battle in Galatians 5:17: “For the flesh desires what is contrary to the Spirit, and the Spirit what is contrary to the flesh. They are in conflict with each other, so that you are not [able] to do whatever you want” (NIV).
Paul notes in Romans 15:16 that through the grace of God he became a minister of the Gospel to the Gentiles so that the Gentiles might become an offering acceptable to God, sanctified by the Holy Spirit. Paul’s ministry was not merely to win converts to Christ; he intended to see people become sanctified. He says, “I will not venture to speak of anything except what Christ has accomplished through me in leading the Gentiles to obey God by what I have said and done…” (v. 18). Obedience leads to sanctification. Romans 6:17 says, “But thanks be to God that, though you used to be slaves to sin, you have come to obey from your heart the pattern of teaching that has now claimed your allegiance. You have been set free from sin and have become slaves to righteousness.” (NIV).
Sanctification is the Key to Spiritual Growth
Sanctification is both a matter of position and progression. Indeed, we’re told to work toward perfection—that is, maturity in Christ. We’re to move from milk to solid food. We are sanctified because Jesus Christ has saved us and yet sanctification continues to work within to transform us into the likeness of Christ. Sanctification is the responsibility of every believer in Christ. When we choose to pursue sanctification in our life, positive growth occurs. It is important to remember this is a process, and cannot be rushed. Like a newborn baby that gradually matures unto adulthood, so is the work of sanctification in the life of a new Christian. The work of sanctification will ultimately be completed in every believer’s life when Christ returns.
Paul writes, “May God himself, the God of peace, sanctify you through and through. May your whole spirit, soul and body be kept blameless at the coming of our Lord Jesus Christ.” (1 Thessalonians 5:23)
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