The second is that of the Teacher. A principal part of His ministry while on earth certainly was to teach. He was the Prophet that was to come into the world, and all that He taught bore reference to the two acts just dwelt upon, that He came forth from God and was going to God. Not a sentence of His teaching but presupposes His Incarnation and His Passion. That whole body of truth, therefore, which He did not write down Himself, but committed to the living ministry of His Apostles, proceeds, as it were, out of His Pontificate, and rests upon it. It is the truth of the Word made flesh, and of God sacrificed for His creatures. The gift of teaching, as the illuminating power in His Church, corresponds to the virtue of faith in the taught, and implies the possession of truth in the teacher. As the priesthood has a perpetual sacrifice stored up within it, and a perpetual gift of grace accompanying it, so the teaching has a perpetual gift of truth. The fountain of truth, therefore, in this Power, can be no more discoloured and polluted than the fountain of grace in the priesthood can be turned into sin. By virtue of it Christ remains for ever the one Teacher and Master whom all His people have to follow. Theology is an outcome of this Power. The issuing of doctrinal decrees is grounded upon it, and the censure of writings and of all false opinions on whatever subject which may impair Christian doctrine. The third direction of the one Power is that of ruling and ordering, not to be separated from the former two, since it consists, in fact, in the free, legitimate, and ordered use of them, and has, therefore, been termed Jurisdiction, inasmuch as it is government in the whole domain of grace and truth. In every government there is a power which administers, a power which legislates, a power which judges, and all these in the sovereign degree; that is, in a degree not liable to revision and reversal in the respective subject-matter. If we apply these three acts to the full domain of grace and truth, which is the domain of the Incarnate Son (John i. 14), set up in the world, we express that royalty which is the third attribute of the priesthood. It comprehends supreme pastorship in all its range; legislation in the kingdom of truth; and judgment, whether external or internal, in the spiritual tribunal. This was the Power, one and indivisible in itself, triple in its direction, which Christ took from His own Person as part of the all-power given to Him, and delegated to the Ruler of His Church, that in the exercise of it He might fulfil all prophecy concerning Himself, and be at once Priest, Prophet, and King: and out of this He made and makes His people.