The universal Church is the body of which Christ is the head and to which all who are saved belong. It is made visible in local churches, which are congregations of believers who are committed to each other for the worship of God, the preaching of the Word, the administering of Baptism and the Lord's Supper; for pastoral care and discipline, and for evangelism. The unity of the body of Christ is expressed within and between churches by mutual love, care and encouragement. True fellowship between churches exists only where they are faithful to the gospel.