“41. That is why the visible, external priesthood of Jesus Christ is not handed down indiscriminately to all members of the Church in general, but is conferred on designated men, through what may be called the spiritual generation of holy orders. 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. 43. In the same way, actually that baptism is the distinctive mark of all Christians, and serves to differentiate them from those who have not been cleansed in this purifying stream and consequently are not members of Christ, the sacrament of holy orders sets the priest apart from the rest of the faithful who have not received this consecration. For they alone, in answer to an inward supernatural call, have entered the august ministry, where they are assigned to service in the sanctuary and become, as it were, the instruments God uses to communicate supernatural life from on high to the Mystical Body of Jesus Christ. Add to this, as We have noted above, the fact that they alone have been marked with the indelible sign ‘conforming’ them to Christ the Priest, and that their hands alone have been consecrated ‘in order that whatever they bless may be blessed, whatever they consecrate may become sacred and holy, in the name of our Lord Jesus Christ’ Let all, then, who would live in Christ flock to their priests.”  Pope Pius XII, Mediator Dei