How do we know the effectual call of grace is true?

The effectual call of grace is known to be true as it manifests in a transformed heart that seeks Jesus alone. While many may hear the general call of the gospel, which can pique interest, the effectual call results in an irresistible draw to Christ, as articulated in Romans 10:13-14, where Paul discusses the necessity of hearing about Christ in order to believe. Those who receive this call cannot help but recognize their need for Christ and desire to learn more about Him, indicating the true work of the Holy Spirit in their lives.