The Anglican Communion consists of thirty-eight autonomous churches, or provinces, worldwide which are in communion with the Archbishop of Canterbury. These churches include over 500 dioceses, 64,000 congregations, and 70 million members. The Anglican churches teach the Catholic and Apostolic faith, as expressed in the Old and New Testaments of the Holy Bible and the creeds of the ancient church, and interpreted through the authority of Scripture, Tradition, and Reason.