It accomplishes this both internally, within the body, and externally, in the world.
The purpose of the church is to fulfill the Great Commission as Jesus commanded in Matthew 28:18-20. There is no nobler purpose for the church than to introduce others to Christ. We do this in part by making sure we faithfully represent Him and become who He has called us to be.Philippians 2:15 exhorts us to be “blameless and innocent, children of God without blemish in the midst of a crooked and twisted generation.” Whether we witness to people in our neighborhoods or send others to foreign lands, the church is called to manifest the Holy Spirit in us by embodying Jesus’ character and telling others about Him.
The purpose of the church is to be the believer’s spiritual family. It is through the church that God takes people with different personalities and gifts, unifies them as a single body, and equips them to care for each other and reach the world. We were not meant to live the Christian life alone; surrounded by the biblical teaching and loving community of the church, together we find our own purpose in life.