How do we know that preaching is necessary for salvation?

The necessity of preaching for salvation is clearly articulated in Romans 10:14, which asks how people can call on the one they have not believed in, and how they can believe in the one of whom they have not heard. This emphasizes that the proclamation of the Gospel is essential in God’s plan for salvation. The implication here is profound: God has appointed preachers as His instruments to ensure that His Word is delivered, allowing the Holy Spirit to work in the hearts of listeners. Thus, preaching is not merely an option in faith but a divinely instituted means without which no one can come to true saving faith.