The sermon centers on the foundational grace and peace found in Christ, emphasizing that true peace arises only through God's unmerited favor, which reconciles sinners to a holy God through the atoning blood of Jesus. It highlights the Trinitarian source of this grace and peace—derived from God the Father and the Lord Jesus Christ—affirming Christ's deity and the unity of the Godhead. The preacher underscores Paul's heartfelt thanksgiving for the Philippian church, not for its perfection but for its consistent faithfulness to the gospel, calling believers to prioritize biblical preaching over worldly preferences in church selection. A strong pastoral charge follows: Christians must commit to their local churches, avoid being 'church tramps,' and actively support faithful ministry through prayer, encouragement, and consistent fellowship, especially in settings like Sunday school that foster spiritual growth and mutual edification.