This document discusses the differences between the kingdom of heaven and the church. It provides biblical references to support the position that the kingdom of heaven refers to Christ's future earthly kingdom during the Millennium, while the church refers to believers in the current church age. Key points made include that the kingdom will be a physical, earthly kingdom where salvation is based on works, while the church is a spiritual body entered by faith. The document also examines multiple passages in Matthew that reference the kingdom of heaven to argue they are referring to Christ's future earthly reign.