That power, then, which He designated in the keys given to Peter, in the Rock which He set in his person, in the pastoral charge which He laid upon him over His sheep, and in which He sent forth His Apostles to make disciples all nations, to baptize them in the sacred Name, to teach them to observe all which He had commanded, and in the exercise of which He promised to remain with them to the end of the world, is one and indivisible in itself, and triple in its range and direction—a priesthood proclaiming the truth and ruling in the sphere which belongs to its priesthood and its teachings. As Adam is created one and complete, and his race springs from him, so this kingdom of Christ springs complete from Him in its regimen, which is not the result of history, but formed in His Person before its history begins, as He is at once Priest, Teacher, and King. Thus this Power comes from above, not from below; proceeds from emanation; is not gathered gradually by accretion; is an effect of positive institution, derived from the Head; not the effect of a need or the working out of a natural capacity in the body. The root of that Power is the act for the accomplishment of which our Lord Himself took our flesh upon Him—the act of His high priesthood, by which, having taken our flesh, He took also the sins of the world upon Himself, and offered Himself for them on the cross. It is as Redeemer that He is Priest, the sacrifice of His body being the offering which He made. It is in the perpetual service and offering of that body that the priesthood which He created for others exists and provides the perpetual bread of life, which is the food of sanctification, for His people. In the priesthood, therefore, we have to deal with the whole range of subject which embraces grace on the part of God and worship on the part of man. It is most fitting that all spiritual power should grow upon this stock. All priesthoods in the world from the beginning had been connected, as we have seen, with the sense and acknowledgment of guilt; and with the rite of sacrifice. In the Aaronic priesthood this has been specially noted. Thus it bore a perpetual prophetical witness to the act which Christ accomplished. All future priesthood dated from the accomplishment of that act, and took its force from it. Thus it was truly the central act of human history. Had not the Son of God assumed our nature, He could not have been a Priest. His priesthood, therefore, carried in it the two great divine acts—His incarnation and His satisfaction, which make up the economy of human salvation. The first direction, then, of the power which He delegated is that of the Priest.