The sermon draws from Philippians 4:4–9 to reveal that true peace is not found in circumstances, emotions, or worldly pursuits, but in a living, abiding relationship with Christ, who is the foundation of joy, prayer, and inner tranquility. It emphasizes that genuine rejoicing is not a reaction to favorable conditions but a divine command rooted in union with Christ, even amid suffering. The passage calls believers to replace anxiety with prayer and thanksgiving, trusting that God's peace—supernatural and surpassing understanding—will guard the heart and mind through Christ. Central to sustaining this peace is the intentional renewal of the mind, guarding thoughts against worldly influences and deliberately meditating on what is true, honorable, pure, and praiseworthy. Ultimately, peace is not merely a gift to be received but a reality to be lived through obedience to God's Word, resulting in the personal presence of the God of peace. This peace, therefore, is not a feeling, technique, or self-generated state, but a divine reality found only in Christ, the one who satisfies the soul's deepest restlessness.