The sermon emphasizes the importance of being peacemakers, as taught by Jesus in Matthew 5:9, highlighting that true peace comes from God and is not merely the absence of conflict but a deep sense of reconciliation and wholeness. Pastor McKinley outlines practical steps for living as peacemakers, including surrendering to God, understanding others, addressing issues rather than attacking people, confessing faults, and prioritizing reconciliation over resolution. Ultimately, the message calls believers to embrace their role as ambassadors of Christ’s peace, sharing the gospel and working towards unity in a world filled with division.