The sermon centers on the imperative to exalt Jesus Christ in witness, emphasizing boldness rooted in Scripture and a clear understanding of his identity. Drawing from Acts chapter two, the preacher highlights Peter's example of confronting accusations with biblical reasoning, demonstrating how to articulate Jesus' divinity and the promise of salvation through repentance and faith. The message underscores the importance of leaning on God's word, recognizing Jesus as the cornerstone of faith, and sharing the gospel with conviction, ultimately calling listeners to a personal commitment to Christ and assurance of eternal life.