42 This latter, one of the seven sacraments, not only imparts the grace appropriate to the clerical function and state of life, but imparts an indelible "character" besides, indicating the sacred ministers' conformity to Jesus Christ the Priest and qualifying them to perform those official acts of religion by which men are sanctified and God is duly glorified in keeping with the divine laws and regulations.
Source: Mediator Dei (Vatican.va)