Topic: Christian conduct

This detailed sermon outline examines Ephesians 4:22–24 and Paul’s command for believers to “put off” the old man, “be renewed in the spirit of your mind,” and “put on the new man,” which after God is created in righteousness and true holiness. The message carefully distinguishes the believer’s settled position in Christ from his daily Christian walk, showing that salvation does not consist of improving the old nature but of living consistently with the new identity God has already given the believer in Christ. It explores the corruption and deceitful lusts of the old man, the renewing of the mind through biblical truth, the new man as God’s creation, practical righteousness and holiness, the danger of grieving the Holy Spirit, and the visible changes that should follow spiritual growth. Preachers, teachers, and Bible students will gain a sermon-ready framework for teaching Christian transformation without confusing sanctification with salvation, while emphasizing grace, the indwelling Spirit, renewed thinking, practical holiness, and a daily walk worthy of the believer’s calling in Jesus Christ.