The sermon emphasizes that a godly marriage must be built on the foundation of obedience to God, addressing the root causes of marital confusion and failure. Drawing from Matthew 5, it teaches that sin begins in the heart and eyes, requiring believers to guard their thoughts and flee temptation rather than merely avoiding physical acts. The message warns against the ease of divorce by highlighting Jesus' strict standards for adultery and separation, urging couples to endure trials through faith. It outlines practical steps for maintaining a covenant relationship, including prioritizing God, leaving parents to cleave to one's spouse, and practicing constant forgiveness. Ultimately, the preacher asserts that only by centering the marriage on Christ can couples overcome the world's influences and sustain their union.