How do we know the necessity of preaching the gospel?

The necessity of preaching the gospel is firmly rooted in Scripture. Romans 10:14 highlights a critical truth: how can people call on Him in whom they have not believed? And how can they believe if they have not heard, and how can they hear without a preacher? This establishes that the communication of the gospel message is essential for anyone to come to faith. The urgency with which we approach this task stems from the reality that faith comes by hearing (Romans 10:17), and therefore every believer plays a vital role in proclaiming the message of salvation.