The Church, as the ecclesial community of Jesus Christ, holds the divine mandate of evangelism - a commission rooted in the Great Commission (Matthew 28:19-20) - where gospel music plays an important role. Gospel music serves as both a theological and cultural expression capable of fulfilling this mandate. However, in South-Western Nigeria, the practice of gospel music has witnessed significant deviations: performers with questionable moral and spiritual integrity exploit the art form for fame, wealth, and influence. This study undertakes an ecclesiological review of gospel music and ministry in the region, arguing that gospel music remains an effective medium for evangelism and spiritual edification when practised within biblical parameters. Employing a qualitative research methodology, this study integrates theological exegesis, musicological analysis, and cultural hermeneutics to explore the origins, styles, and roles of gospel music in Christian contexts within the region. It recommends strategic ecclesial reforms and theological training to guide gospel musicians and church leaders towards maintaining the redemptive and mission-oriented ideals of gospel music. The study concludes that a biblically grounded gospel music ministry contributes significantly to spiritual renewal, church growth, and the preservation of doctrinal integrity.