The sermon, "The Urgency of Prayer and the Mission of God," emphasizes the pivotal role of prayer in the early church as recorded in the Book of Acts. Highlighting instances from the narrative, the preacher illustrates how prayer served as the backbone of the church's growth, unity, and resilience. With a focus on communal prayer, the sermon advocates for the church today to embrace prayer not just as a personal discipline but as a collective endeavor to seek divine guidance and intervention in fulfilling God's mission.