The sermon centers on the miracle of Jesus restoring speech to a mute man possessed by a demon, highlighting the profound connection between voice, identity, and spiritual freedom. Drawing from Scripture, it emphasizes that humanity's ability to speak is a divine gift reflecting God's own creative power, yet sin and Satan have corrupted this gift, rendering people spiritually mute, deaf, and blind. The healing of the mute man symbolizes the liberation from demonic bondage and the restoration of communion with God through faith in Christ, who is the ultimate Word made flesh. The preacher underscores that true spiritual hearing and speaking come only through the Holy Spirit, and believers are called to use their voices to praise God, proclaim the gospel, and live in truth—rejecting lies, gossip, and bitterness. Ultimately, the sermon calls the congregation to recognize God's voice in Scripture, prayer, and providence, and to respond with grateful testimony, joining the eternal chorus of worship that celebrates God's unending love and grace.