In this sermon, we explored Paul’s use of exaggerated contrast in Ephesians 4:17-24 to highlight the difference between the old life without Christ and the new life in Him. Using vivid examples from both Scripture and everyday life, we saw how futile thinking, darkened understanding, and a hardened heart lead to spiritual emptiness and disconnection from God. The sermon emphasized that the world’s attempts to fill the void—through pleasure, achievement, or self-justification—are ultimately futile because we are created for communion with God. The only hope is to “put on” the new self, which comes through learning Christ, embracing His truth, and daily choosing to live out our new identity. The message closed with practical encouragement to feed our spirits with God’s truth, reject the junk of the old life, and walk in the freedom and transformation Jesus offers.