[1][2] In 2012 the Congregation sent a letter to all conferences of bishops, offering the feast to be inscribed in their respective liturgical calendars if they ask for it.
What Pope Pius XI wrote about the feast in honor of Christ’s Kingly Office can be said just as truly about this feast in honor of Christ's Priesthood:[opinion] For people are instructed in the truths of faith, and brought to appreciate the inner joys of religion far more effectually by the annual celebration of our sacred mysteries than by any official pronouncement of the teaching of the Church.
The entry from the Roman Martyrology (2005) reads: Thursday after Pentecost The Feast of Our Lord Jesus Christ, The Eternal High Priest, according to the order of Melchizedek.
As Mediator between God and human beings, fulfilling his Father’s will, he sacrificed himself once on the altar of the Cross as a saving Victim for the whole world.
Thus, instituting the pattern of an everlasting sacrifice, with a brother’s kindness he chose, from among the children of Adam, men to augment the priesthood, so that, from the sacrifice continually renewed in the Church, streams of divine power might flow, whereby a new heaven and a new earth might be made, and throughout the whole universe there would be perfected what no eye has seen, nor ear heard, nor has entered into the human heart.