Viewing, then, the transmission of the Truth as a whole, and the creation of the mystical Body of Christ as its home, and the Holy Spirit as the perpetual Indweller who fills that treasure-house of Truth and Grace, we may consider its maintenance as secured by the triple succession or tradition of men, of doctrine, and of institutions which are inseparably joined together in that its home. But there are some words of our Lord so distinctly and translucently expressing all this statement respecting the mode in which His Truth was first and is ever to be transmitted, and the conditions to which His perpetual presence is attached, that we cannot forbear to adduce them. His parting instructions to His Apostles on the Mountain of Galilee given by S. Matthew run thus: “Jesus approached them and said unto them, All power has been given unto Me in heaven and on earth. Go therefore, and make disciples all nations, baptising them in the name of the Father and of the Son and of the Holy Ghost, teaching them to observe all things whatsoever I have commanded you; and behold I am with you all days even to the end of the world.” We shall here note six things. First, there is the root and foundation of all mission, the power bestowed upon Christ as man, in virtue of the Incarnation: “all power has been given to Me in heaven and on earth;” secondly, there is the derivation of this power from Christ to His Apostles, in virtue of which sent by Him, as He by His Father, they were to go forth: “Go ye therefore;” thirdly, there is the creation of the perpetual teaching power, the authority by which truth was to be imparted: “make disciples all nations.” He placed it in them as in one Body, here fulfilling what S. Augustine afterwards expressed, that He “seated the doctrine of Verity in the Chair of Unity.” They, invested with one Spirit, His own Spirit of Truth, should go forth and make disciples all nations to one Body of Truth. It is the creation of a power new as the Incarnation, as it unique, because springing from it, founded and continued in it. He Himself is the one Teacher whose voice they express: He who came on earth for three and thirty years speaks for evermore in those whom He sends as one Body, which calls no man teacher, because it is the Body of Christ, _the_ Teacher: so that this function of magisterial teaching is the great distinctive office of His Church, coming from above, and invested with the authority of the God-man, by which it draws to it disciples, whose consent is not the ground but the result of its authority. Fourthly, there is the creation of the sacraments, as containing the grace which is needed for the reception of this Truth, and they are summed up in the first, which is the beginning of the new life, illumination, and perfection, and which is given in the covenant name of God, as the Christian God, and is the mark of the triune Creator, Redeemer, and Sanctifier, impressed on his own people of acquisition.