We cannot be more or less justified, but either are, or are not. Guilt is totally gone from the Christian, and gone forever. Therefore, for the Christian, justification is past. We are sanctified. The Greek word is hagiasmos which is translated as sanctification or holiness in the King James.
Sanctification is the present portion of salvation.
This means that we are set apart from the world, and from sin, so that we may have intimate fellowship with the Lord. Justification is once for all, sanctification is a continuous process, from our acceptance of Christ, right up to our death. Sanctification deals with the power of sin in the Christians life and there are degrees in this. We are immediately set apart from the world and for God when we are saved, however we do not become perfect. As soon as we are indwelt by the Spirit of God, and all saved people are, we have available to us the power of God to deal with our sin.