There is a difference between change and transformation. Transformation is a revolution, makeover, or renewal of something. Transformation is change. Nonetheless, not all change is transformation or involves change. There are things that are temporarily changed and revert back to their "old way" of being. The preached Word of God has transformation power because it comes from the mouth of God into the soul, mind, and body of the preacher causing transformation, and out of that experience, the preacher, empowered by the Holy Spirit, boldly brings the message of transformation to the soul, mind, and bodies of the listeners. When this takes place, a chain reaction is set in motion resulting in the transformative effects that took place in Acts in the Early Church. Pentecostal preaching seeks to stir up the same phenomenon that took place in Acts 2. Pentecostal preaching, in contrast to expository preaching, does not seek to teach the meaning of a verse. Pentecostal preaching is concerned with metanoia--conversion and transformation that comes from repentance. This paper seeks to demonstrate how Pentecostal preaching was used in the preaching ministry in the Hispanic Pentecostal congregation of Chicago Heights, IL as a catalyst to bring about transformation to the hearers. Through testimonies of congregation members, the writer's own personal journey, other resources, this thesis states how message structure, open and active communication and the Pentecostal message enkindles (arouses) a transformative response in the soul, mind and body of the hearer.