A.W. Tozer emphasizes the reality of sin in the lives of believers, reminding us that while we strive to walk in the light, we may still fall short. He highlights the importance of confession and the assurance that Jesus Christ serves as our Advocate, providing forgiveness and cleansing for our sins. Tozer draws parallels between the Old Testament sacrificial system and the ultimate sacrifice of Christ, encouraging believers to identify with Him in faith. He reassures the congregation that no one is beyond redemption and that through Christ, all can be cleansed and restored. As they prepare for communion, he urges self-examination and a heartfelt approach to receiving the Lord's Supper.