The sermon explores the theological significance of Cornelius, a devout Gentile, receiving assurance of salvation through the apostle Peter. It emphasizes that God shows no partiality based on ethnicity or past sins, but accepts all who fear Him and believe in Jesus Christ. The preacher highlights how general revelation leaves humanity without excuse while special revelation in Scripture provides the necessary path to forgiveness. Through Cornelius's experience, the message demonstrates that God actively seeks those who desire Him and validates their faith through the Holy Spirit. Ultimately, the text affirms that peace with God is available to every nation solely through the atoning work of Christ.