The sermon centers on the life, death, and resurrection of Jesus Christ as the cornerstone of faith, emphasizing that these events are integral to God's plan for salvation. Drawing from Acts 2, the message highlights Jesus's ministry marked by miraculous works and ultimately culminating in his sacrificial death and subsequent resurrection, demonstrating God's power over death and offering hope for believers. The preacher underscores the importance of understanding these events as a call to repentance and faith, asserting that Jesus's resurrection guarantees eternal life for those who embrace him, and ultimately, the church's mission is to proclaim this truth and gather people into God's kingdom.