Why is preaching the gospel essential for Christians?

The preaching of the gospel serves as the primary means of spiritual nourishment and regeneration for believers. Romans 10:14 asks, 'How then will they call on Him in whom they have not believed? And how are they to believe in Him of whom they have never heard?' This illustrates that faith arises through hearing the message of Christ. In Acts 8, Philip's preaching highlights this, as he proclaimed the things concerning the kingdom of God, and as a result, many were believed and baptized. This underscores the importance of consistent gospel proclamation in the church's life, as it not only builds up the body of Christ but also fulfills our mandate to make disciples of all nations.