Chapter 15 — Part II: The Sacraments — Introduction on the Sacraments in General
Section 71. Second Effect: Sacramental Character — The second effect of the Sacraments -- which, however, is not common to all, but peculiar to three, Baptism, Confirmation, and Holy Orders -- is the character which they impress on the soul. When the Apostle says: God hath anointed us, who also hath sealed us, and given the pledge of the Spirit in our hearts, he not obscurely describes by the word sealed a character, the property of which is to impress a seal and mark.