1. What 2. Where 3. Why This sermon centers on the imperative to let the peace of God reign in the hearts of believers, rooted in the reality of their union with Christ and their calling to be one body in the church. Drawing from Colossians 3:15, it emphasizes that true peace is not merely the absence of conflict but a divine gift secured through Christ's atonement, which reconciles sinners to God and enables believers to live in harmony with one another. This peace is not achieved by human effort or willpower, but by faith in Christ, who is the source and sustainer of peace, and it is sustained through daily dependence on Him. The practical outworking of this peace is seen in the cultivation of virtues such as mercy, kindness, humility, meekness, forgiveness, and love, each grounded in gratitude for God's grace and is essential for preserving unity and spiritual health within the church. Ultimately, the call to peace is not a mere moral exhortation, but a response of thankfulness to the profound reality of being reconciled to God through Christ, making peace the hallmark of a life transformed by grace.