How do we know that the message of Christ is effective?

The effectiveness of the message of Christ is affirmed in the way it brings about faith in the hearts of those who hear it. Romans 10:17 states, 'So then faith cometh by hearing, and hearing by the word of God.' Christ sends out His word to accomplish His purposes, and when the gospel is preached, it has the power to lead people to believe and be saved. This understanding comes from a deep reliance on God's sovereignty in salvation, where He actively works through His word and the preaching of the gospel to bring about belief in Christ.