R. H. Miller preaches about the importance of the social and public mission of the church, emphasizing that Christianity is intertwined with social responsibilities and forms, and that the church must be at the forefront of developing, occupying, and building moral elements in the community. He highlights the need for church extension to minister to the whole life of individuals, representing the divine pattern of doing good and fulfilling the mission of beneficence. Miller stresses the significance of building churches dedicated to unity and redemption, sharing life and treasure with the world, and meeting the urgent demand for distinctly religious architecture in modern times.