But as inequality may be manifold, as of age, calling, honour, order, jurisdiction and power, its nature and its degree must be sought in that property which belongs to one over the rest. So that we must determine, by the authority of the Scriptures, from those gifts which were promised to Peter alone, the nature and the degree of that inequality which subsisted between him and the other Apostles. The gifts promised to Peter alone, are contained in these words of Christ, recorded by Matthew: and therefore, from their nature and inherent qualities, we must judge of the sort, and the extent of inequality, put by Christ between Peter and the rest. These are summed up in the four following: I. That Peter is the rock, on which the Church was to be built by Christ, the Chief Architect. II. That the impregnable strength which the Church was to have against the gates of hell, depended on its union with Peter, as the divinely laid foundation. III. That by Christ, the King of kings, and Lord of lords, Peter is marked out as next to Him, and after Him, the Bearer of the keys in the Church's heavenly kingdom: IV. And that, accordingly, universal power of binding and loosing is promised to him, leaving him responsible to Christ alone, the supreme Lawgiver and Judge. Therefore the nature of the prerogatives expressed in these four terms must be our standard both of the character and degree of inequality between the Apostles and Peter, and of the power of the Primacy promised to Peter. But these terms mark authority, and plainly express jurisdiction and power; the inequality, therefore, is one relating to jurisdiction and power; and Peter's pre-eminence likewise such.