Before we go any further in discussing the role of the Law, let us proceed to look at the issue of sanctification. “Why?” you may ask. Quite simply, because the issues of justification and sanctification cannot be separated from each other and need to be fully understood together. But before I can explain the connection properly, we first need to look at what the word sanctification means.
The Westminster Shorter Catechism defines sanctification as “the work of God’s free grace, whereby we are renewed in the whole man after the image of God, and are enabled more and more to die unto sin, and live unto righteousness.” In justification, once the sinner believes in Jesus, he/she is declared righteous before God purely on Jesus Christ's sacrificial death on the cross. The guilt of sin is removed and the sinner is clothed in the righteousness of Christ. At this point, the the lifelong process of sanctification immediately begins. This process is described by the theologian, Louis Berkhof as “that gracious and continuous operation of the Holy Spirit, by which He delivers the justified sinner from the pollution of sin, renews his whole nature in the image of God, and enables him to perform good works.”
