The sermon emphasizes the pervasive nature of conflict and violence throughout human history and the necessity for peacemakers in a world rife with strife. It highlights the biblical perspective on peace, focusing on Jesus' teachings in the Beatitudes, particularly the call to be peacemakers, embodying God's character and actively pursuing peace and reconciliation. The speaker encourages believers to embody the qualities of a peacemaker—honesty, risk-taking, and fighting for peace—rooted in a deep relationship with Jesus, the ultimate peacemaker, to bring about true peace in both personal relationships and wider society.