Priests act in the person of Christ

Immitation of Christ Book IV- Latin text above- large text below.

HAD you the purity of an angel and the sanctity of St. John the Baptist, you would not be worthy to receive or administer this Sacrament. It is not because of any human meriting that a man consecrates and administers the Sacrament of Christ, and receives the Bread of Angels for his food.

Great is the Mystery and great the dignity of priests to whom is given that which has not been granted the angels.

For priests alone, rightly ordained in the Church, have power to celebrate Mass and consecrate the Body of Christ.

The priest, indeed, is the minister of God, using the word of God according to His command and appointment. God, moreover, is there -- the chief Author and invisible Worker to Whom all is subject as He wills, to Whom all are obedient as He commands.

In this most excellent Sacrament, therefore, you ought to believe in God rather than in your own senses or in any visible sign, and thus, with fear and reverence draw near to such a work as this. Look to yourself and see whose ministry has been given you through the imposition of the bishop's hands.

Behold, you have been made a priest, consecrated to celebrate Mass! See to it now that you offer sacrifice to God faithfully and devoutly at proper times, and that you conduct yourself blamelessly. You have not made your burden lighter. Instead, you are now bound by stricter discipline and held to more perfect sanctity.