The sermon centers on the universal accessibility of salvation through faith in Jesus Christ, emphasizing that salvation is not earned by law-keeping, ethnicity, or personal merit, but received by believing in the Lord Jesus, as affirmed by Scripture from Isaiah to Romans. It underscores that faith arises from hearing the gospel, which must be preached by those sent by God, highlighting the urgent responsibility of every believer to share the message, as no one can call on Christ they have not heard. The message is both a call to personal faith and a charge to evangelistic action, rooted in the truth that the gospel is available to all, yet requires active proclamation, for without it, faith cannot arise. The sermon concludes with a sobering yet hopeful reminder: while not all will believe, the command to preach remains, and every effort to share the good news is both a duty and a privilege, as God's Word accomplishes its purpose when faithfully delivered.