The Roman Catholic priesthood is more than a job; it is a calling—a vocation. The Church believes God speaks directly to men and invites them specifically and individually—intentionally—to dedicate their lives to His service and to the service of the Mission of Christ, His Son, in the Catholic Church. At ordination, a man’s soul undergoes an ontological change—a change of being—that indelibly marks his soul forever. Once a priest, always a priest “according to the Order of Melchizedek.” (Heb. 7: