iii. Real, whether educed from texts containing the institution

of the Primacy, or from the inherent properties of the Church. 1. Educed from texts 219 2. Educed from properties of the Church; _first_, its _identity_; _secondly_, its _unity_; _thirdly_, its _catholicity_; scriptural setting forth of unity 220

Further illustration from Protestant opinions of the Church's unity.--

A. First, that of Anglicans, of unity in particular Churches, but not in the universal Church, represented by Dodwell 222

B. Second opinion, set forth by Vitringa, of distinction between the necessity of internal and that of external unity 225

C. Third opinion, of agreement in fundamentals 232

Two causes of this being held, one theoretical, the other practical.--The former stated 233

The practical cause 234

Reasons educed, _thirdly_, from the _Catholicity_ of the Church, with which the Primacy is bound up.--Catholicity has two parts, one _material_ and one _formal_ 236

The _material_ part, amplitude and extension.--The _formal_ part, not only negative, but affirmative.--_Negative_, as expelling from the one true Church all heretics and schismatics: testimonies to it 237

_Affirmative_, at making a coherent body with members and articulations 238

Testimonies to the _mode_ of this coherence, in Irenæus, Cyprian, and Tertullian, and the other Fathers, summed up in S. Leo 239

Hence answers to the question whether the doctrine of S. Peter's Primacy is contained in the creed.--It is involved in one Catholic Church 243