Why is the act of preaching the gospel essential for salvation?

The necessity of gospel preaching is embedded in Scripture, as demonstrated in Romans 10:13-15, which states, 'How shall they believe in him of whom they have not heard? And how shall they hear without a preacher?' The act of preaching serves as the conduit through which God’s word penetrates hearts, allowing individuals to hear and respond to the message of salvation.

In Lydia's case, Paul's arrival and preaching at the riverside illustrates God's providential orchestration in delivering His word. Importantly, salvation springs from hearing the gospel and a divine response that follows. This aligns with the Reformed doctrine that emphasizes the power of God's word to effectually call His chosen people. Therefore, preaching is not merely about imparting information but is an essential, Spirit-led tool that God uses to bring life's transformation and conversion.