This sermon, given by Gav Calver from the Evangelical Alliance, focuses on the importance of Christian unity and sharing the gospel in the UK. He outlines the Evangelical Alliance's mission to unite Christians and provide a collective voice in government. He emphasizes that the UK is in a season of openness to the gospel, citing recent statistics on church growth and Bible sales. Calver encourages Christians to have refuge, confidence, and hope in Jesus, and to boldly share their faith. He also shares personal anecdotes and examples of God's work in different parts of the country.