The purpose of the church, as planned by God from the beginning, is not a cosmic accident but a deliberate design by the Creator. God intended for there to be a group, known as the church, that would bear characteristics similar to His Son. This group, called and arranged for a specific purpose, is meant to reflect God's nature even now, though not yet fully as destined when they will completely be sons of God. The church exists as a spiritual organism, alive and united under Christ as the head, with a function to carry out. Its primary responsibility is preparing those who are called, rather than focusing solely on preaching to the world. God raises up individuals at specific times to call out a few for preparation, often followed by long periods with little public preaching. The church's role includes begetting children into the Family of God, as only those drawn by the Father's Spirit can come to Christ. Historically, the church's purpose is tied to Israel's failure to fulfill God's expectations. Israel, as a congregation, was meant to witness to the world through example and produce holy seed, but they failed due to unbelief. Consequently, God turned to the church, the Israel of God, to achieve what Israel could not. Under the New Covenant, the church is held to a higher degree of sanctity, with better promises such as forgiveness of sin, eternal life, and the receipt of God's Holy Spirit, aiming to eliminate human weaknesses through a lifetime of sanctification. The church, built by Jesus Christ over 2,000 years, is being prepared as the firstfruits of God's purpose to assume roles in expanding His Family. This preparation involves sanctification to be ready for the marriage with Christ, from which spiritual children will be born, particularly during the Millennium. The church will play a key role in the reconciliation and salvation of Israel after Christ's return, acting as a holy seed to transform Israel into a holy nation. Eventually, through the church and the converted nation of Israel, God's work will expand to include the salvation of the Gentiles and the entire world in the Great White Throne judgment. Even now, the church practices a ministry of reconciliation, preparing for the greater work of reconciling the world to God through Christ's sacrifice. This purpose, unfolding over time, will culminate when the church reflects enough of God's image, signaling Christ's return and the readiness to fulfill the work it was designed to do.