Chapter 21 — Part II: The Sacraments — Holy Orders
Section 82. This power is also called a spiritual character, because those who have been ordained are distinguished from the rest of the faithful by a certain interior mark impressed on the soul, by which they are dedicated to the divine worship. It is this grace which the Apostle seems to have had in view when he said to Timothy: Neglect not the grace that is in thee, which was given thee by prophecy, with imposition of hands of the priesthood; and again: I admonish thee, that thou stir up the grace of God which is in thee by the imposition of my hands.