The seventh commandment, 'You shall not commit adultery,' is rooted in God's design for human sexuality as established in creation, where one man and one woman become 'one flesh' in a lifelong, exclusive union. This commandment is not merely about marital fidelity but calls for holistic sexual purity—abstaining from all lustful desires, impure speech, and behaviors that defile the body or corrupt the heart, as Jesus reveals that even lustful thoughts constitute adultery. The sermon emphasizes that sin perverts God's good creation, and thus the law serves to expose our need for Christ, who alone provides forgiveness and the power to live in holiness. Drawing from Scripture, including Paul's exhortations to sanctification and Jesus' call to radical self-denial, the message calls believers to actively pursue purity through vigilance over the senses, temperance, godly relationships, marital intimacy, and the constant mortification of sin. Ultimately, obedience to this command is not a burden but a joyful response to grace, reflecting a life shaped by the gospel and a testimony to a culture that has lost its moral compass.

The sermon presents Colossians chapter 3 as a practical directory for the believer's ongoing sanctification, emphasizing that doctrinal truth must inform daily conduct. It outlines a spiritual warfare where Christians, having died and risen with Christ, must actively seek heavenly things and put off the old nature through daily repentance and the use of spiritual armor. The preacher stresses the necessity of mortifying sinful desires and putting on the new man, empowered by the Holy Spirit rather than human effort alone. This transformation involves renewing the mind, maintaining pure thoughts, and allowing God's peace to rule within the heart amidst life's trials. Ultimately, believers are called to live in humble dependence on Christ, reflecting His love and forgiveness as they await His glorious return.

Confession and absolution give us a fresh start. But it doesn't conclude our fight against sin. It intensifies it. By confession we renounce sin and pledge to live from now on only for Christ. While we live in the flesh, we are never free from sin. But we must "endeavor by all means, and beg of God by prayer, that we may not fall again into sins" (ch. 14). We must hear Jesus say, "Neither" do I condemn you," and his admonition to "go, and from now on sin no more" (John. 8:11).

Though the power of sin be weakened by inherent grace in them that have it, that sin shall not have dominion over them as it hath over others, yet the guilt of sin that doth yet abide and remain is aggravated and heightened by it: