How the things which have been said about the excellence of this Sacrament, have been said that we might know better the dignity of priests; and how God demands in them greater purity than in other creatures
“I have told you all this, dearest daughter, that you may the better recognize the dignity to which I have called My ministers, so that your grief at their miseries may be more intense. If they themselves considered their own dignity they would not be in the darkness of mortal sin, or defile the face of their soul. They would not only see their offenses against Me, but also, that, if they gave their bodies to be burned, they would not repay the tremendous grace and favor which they have received, inasmuch as no greater dignity exists in this life.
They are My anointed ones, and I call them My Christs, because I have given them the office of administering Me to you, and have placed them like fragrant flowers in the mystical body of the holy Church. The angel himself has no such dignity, for I have given it to those men whom I have chosen for My ministers, and whom I have appointed as earthly angels in this life. In all souls I demand purity and charity, that they should love Me and their neighbor, helping him by the ministration of prayer, as I said to you in another place.
But far more do I demand purity in My ministers, and love towards Me, and towards their fellow-creatures, administering to them the Body and Blood of My only-begotten Son, with the fire of charity, and a hunger for the salvation of souls, for the glory and honor of My Name. Even as these ministers require cleanness in the chalice in which this Sacrifice is made, even so do I require the purity and cleanness of their heart and soul and mind. And I wish their body to be preserved, as the instrument of the soul in perfect charity; and I do not wish them to feed upon and wallow in the mire of filth, or to be inflated by pride, seeking great prelacies, or to be cruel to themselves or to their fellow-creatures, because they cannot use cruelty to themselves without being cruel to their fellow-creatures; for, if by sin they are cruel to themselves, they are cruel to the souls of their neighbors, in that they do not give them an example of life, nor care to draw them out of the hands of the Devil, nor to administer to them the Body and Blood of My only-begotten Son, and Me the True Light, as I told you, and the other Sacraments of the holy Church. So that, in being cruel to themselves, they are cruel to others.”
Source: The Dialogue (CCEL)