Church History of doctrines 91 Doctrines 75 History 45 Authority 38 Biblical teaching 38 Catholic Church 33 more ... Christianity 31 Religious aspects 26 Christian union 23 Criticism, interpretation, etc 23 Theology 23 Unity 23 Theology, Doctrinal 19 Church history 18 Église 15 Catholicity 14 Siena Donor: St. Bernard's Institute 13 Christian ethics 12 Mission of the church 12 Relations 12 Church renewal 10 Church and the world 9 Government 9 Mystical body 9 Teaching office 9 Catholic authors 8 Christian life 8 Clergy 8 Ecumenical movement 8 less ...