The other displays a quote from Benedict’s accompanying letter to bishops: “What earlier generations held as sacred remains sacred and great for us, too, and it cannot be all of a sudden entirely forbidden or even considered harmful.”
The quote from Summorum Pontificum comes from article 1: “The Roman Missal promulgated by St. Pius V and revised by Blessed John XXIII is nonetheless to be considered an extraordinary expression of the same lex orandi of the Church and duly honored for its venerable and ancient usage.”
St. John Paul II’s quote is taken from his 2001 message to the Congregation for Divine Worship and the Discipline of the Sacraments: “In the Roman Missal, called the Missal of St. Pius V, as in several Eastern liturgies, there are beautiful prayers with which the priest expresses the deepest sense of humility and reverence before the holy mysteries: They reveal the very substance of any liturgy.”
The fourth billboard design quotes Pius V’s 1570 apostolic constitution Quo Primum Tempore, which promulgated the then-new Roman Missal: “We decree and we declare that the present letters at no time shall be revoked or diminished, but always stable and valid, they shall persevere in their effect.”
An essay from organizers explained the reason for the billboards.
“This campaign is inspired by the love that all Catholics bear for the pope and wishes to be an expression of it,” it said.
“Love of the pope is not a servile love but a filial love,” it continued, lamenting the dominance of a “cloyingly excessive” servile love of the pope in some Church circles today.
“Like all pious children, those who live their Catholic faith to the rhythm of the traditional liturgy intensely desire that those in the Church who are their fathers show them affection, understanding, closeness, and give them trust, that is, have genuine pastoral care,” it said.
The essay also claimed that “the calm acceptance of the traditional liturgy as fully Catholic, as it is and has never ceased to be, is inextricably linked to the peace and unity of the Church.”