How do we know that preaching is essential for salvation?

The necessity of preaching is confirmed by the scriptures, particularly in 1 Corinthians 1:21, where Paul affirms that it pleased God through the foolishness of preaching to save those who believe. This denotes that God has chosen preaching as the primary method for delivering the gospel message. Without the communication of this message, sinners remain in darkness regarding their need for salvation. The act of preaching is not just an optional endeavor but a divinely ordained means that God uses to bring His elect to faith, making it indispensable in the life of the church and the process of evangelism.