The central event of Pope Leo XIV's visit to Barcelona, the blessing of the Jesus Christ tower at the Sagrada Familia, will be held completely in Spanish. This is stipulated by the official missal released by the Holy See, which details the proceedings of the inauguration mass for the basilica's tallest and most emblematic element.

The Vatican documentation reveals a more limited presence of Catalan compared to the visit of Benedict XVI in 2010. Although Leo XIV's ceremony will be shorter, the missal confirms Spanish as the predominant language for most of the event.

Catalan will be present at the beginning of the mass, with the initial liturgical formula "In the name of the Father, and of the Son, and of the Holy Spirit. Peace be with you," the first reading, the responsorial psalm, and the Creed. However, the Gospel will be proclaimed in Spanish, as will the introductory monitions and a significant portion of the celebrant's interventions.

The prayers of the faithful will combine both languages: three out of the six intentions will be in Catalan and the others in Spanish, with the assembly responding in Latin. This distribution contrasts with the 2010 visit, when the prayers of the faithful were entirely in Catalan.

The Eucharistic liturgy, including the offertory, prayers over the offerings, preface, Eucharistic prayer, words of consecration, rite of communion, and final prayers, will be conducted predominantly in Spanish. Latin will be reserved for certain liturgical chants such as the Kyrie, Gloria, and Sanctus, as well as the responses to the universal prayers.

The culminating moment, the blessing of the 172.5-meter Jesus Christ tower, will be conducted solely in Spanish, according to the Holy See's text. This event is expected to draw significant international media attention.

Overall, the papal visit indicates a reduction in the prominence of Catalan compared to 2010, with Spanish taking precedence in a large part of the ceremony and, notably, in the inauguration of the Sagrada Familia tower.