Justification and sanctification are two distinct but connected aspects of salvation. Both are works of God’s grace, but they serve different purposes in the believer’s life.
Justification is a legal declaration by God that a person is righteous based on faith in Jesus Christ. It happens instantly at the moment of salvation. Romans 5:1 says:
“Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ.”
In justification:
- The believer is forgiven of all sin.
- Christ’s righteousness is imputed to them.
- They are declared not guilty before God.
It is not earned by works but received by faith alone (Romans 3:28).
Sanctification, on the other hand, is the lifelong process of being made holy, becoming more like Christ in thought, action, and character. 1 Thessalonians 4:3 says:
“For this is the will of God, your sanctification: that you should abstain from sexual immorality.”
In sanctification:
- The believer grows in obedience.
- The power of sin is broken.
- The Holy Spirit transforms the inner life.
Hebrews 10:14 shows how both concepts relate:
“For by one offering He has perfected forever those who are being sanctified.”
Justification is once for all; sanctification is ongoing. One changes our standing before God; the other changes our conduct and nature.
Both are essential. Justification brings us into right relationship with God. Sanctification proves and displays that reality through a transformed life. True faith will always lead to both.