How does the Christian know they have been forgiven and given new life? In this sermon on John 1:16 titled “In the Likeness of Christ,” Dr. Martyn Lloyd-Jones elaborates on the traits of the Christian who has received salvation. He explains that no one has received the fullness of Christ if they do not also acknowledge their own sinfulness. The person who thinks they are healthy has no mind to receive the counsel of a doctor. Similarly, the person who thinks they are good and moral has no interest in forgiveness. The person who has received forgiveness and life from Christ has been enlightened by the Holy Spirit to see that the heart is wicked and deceitful, and in need of forgiveness. Furthermore, this Christian realizes their dependence upon God for this new heart and new life. They see that, in themselves, they can do nothing to save or make themselves holy, but that by God’s Word and Spirit may have a life marked by the fullness of Christ. Dr. Lloyd-Jones offers numerous Biblical tests that can bring clarity and hope in the gospel of the Lord Jesus Christ.

http://www.mljtrust.org/sermons/in-the-likeness-of-christ/