In this sermon on Ephesians 6:10–11 titled “Be Strong in the Lord,” he seeks to address the cause of spiritual depression. While the counsellor should take strides to ease the immediate pain of depression, the problem lies deeper than the pain itself. The problem is spiritual. Living in a materialistic world, Dr. Lloyd-Jones explains that one forgets that the spiritual world exists. The tendency is to treat everything as physical. For some, this means arguing that all depression is the result of personal sin. For others, this means arguing that all depression is the result of the body or brain. These answers, however, do not go deep enough and leave the individual in their depression. The problem is that Satan wars against humanity. These depressed thoughts come from the devil himself. In fighting spiritual depression, Christians must engage in a spiritual battle. Dr. Lloyd-Jones examines the whole armour of God and calls Christians to put on this armour. This is their fight against spiritual depression: to take up this armour and fight against the devil. Listen and be encouraged that Christ has triumphed, He has defeated the devil. In Christ, His people will prevail.