Every believer can benefit from thoughtfully considering the basics of the Christian life. One of the most basic questions we should ask ourselves is, What does it mean to be a Christian? Sometimes, answering a question like this requires us to know what a Christian is not. In this lesson, Dr. Ferguson draws from John 8 to provide an overview of the spiritual condition and characteristics of the unbeliever so that we can ask if we are walking in the darkness or in the light.