By CAROL GLATZ
Osv News
ROME – Celebrating his first Mass in Rome’s diocesan cathedral, Pope Leo XIV said communion is built primarily “on our knees,” through prayer and a constant commitment to conversion.
He reaffirmed Pope Francis’ dedication to listening, first and foremost to the Holy Spirit, as it then leads to listening to and understanding others “as our brothers and sisters.”
The Pope’s remarks came during his homily at Mass at the Basilica of St. John Lateran, where he took possession of the cathedral as the bishop of Rome May 25.
he Pope arrived in the late afternoon to the cheers and applause of those who turned out to welcome the U.S.-born pontiff as he stepped out of the black Volkswagen SUV in front of the basilica. He smiled and waved to those outside before being greeted by Cardinal Baldassare Reina, papal vicar for Rome, and then he walked through the basilica’s Holy Door.
Pope Leo XIV celebrates Mass at the Basilica of St. John Lateran in Rome May 25, 2025. During the liturgy, the pope officially took possession of the basilica, his cathedral as bishop of Rome. CNS photo/Cristian Gennari, pool
At the start of the liturgy, Cardinal Reina read a profession of obedience to the Pope on behalf of the diocese and then the Pope sat on the raised marble chair in the basilica’s apse, taking formal possession of the “cathedra” (chair) of the bishop of Rome. He then received representatives of his flock, including clergy and laypeople.
Pope Leo XIV prays before the “Salus Populi Romani,” (“Salvation of the Roman People”), a Marian icon in a chapel of the Basilica of St. Mary Major in Rome, May 25, 2025. CNS photo/Vatican Media
The Pope dedicated his homily to the Mass readings, putting special emphasis on the importance of listening.
The first reading from the Acts of the Apostles (15:1-2, 22-29), described Paul and Barnabas recognizing the authority of the Jerusalem Church and going there to settle the question of whether Gentiles could embrace a form of Christianity that did not include observing every aspect of Mosaic law.
“This was no easy matter; it called for much patience and mutual listening,” and Peter and the apostles in Jerusalem were prepared to listen, Pope Leo said.
That dialogue “led to the right decision,” he said, because they listened to God’s voice.
“In this way, they remind us that communion is built primarily ‘on our knees,’ through prayer and constant commitment to conversion. For only in this way can each of us hear within the voice of the Spirit crying out: ‘Abba! Father!’ and then, as a result, listen to and understand others as our brothers and sisters,” he said.
“Naturally, the more we let ourselves be convinced and transformed by the Gospel – allowing the power of the Spirit to purify our heart, to make our words straightforward, our desires honest and clear, and our actions generous – the more capable we are of proclaiming its message,” the Pope said.
In fact, he said, “the Gospel assures us that we are not alone in making our decisions in life. The Spirit sustains us and shows us the way to follow, ‘teaching’ us and ‘reminding’ us of all that Jesus said.”
“Pope Francis frequently encouraged us to reflect on the maternal dimension of the Church and her defining qualities of tenderness, self-sacrifice and the capacity to listen,” he said.
“We hope that those qualities will be increasingly present in the people of God everywhere, including here, in our great diocesan family: in the faithful, in pastors and, first of all, in myself,” Pope Leo said.
He encouraged the Diocese of Rome’s “process of listening” to the world and its communities to respond to current challenges and “to propose sage and prophetic initiatives of evangelization and charity.”
Pope Leo XIV waves after he celebrated Mass at the Basilica of St. John Lateran in Rome May 25, 2025. The pope officially took possession of the basilica, his cathedral as bishop of Rome. He is joined by Cardinal Baldassare Reina, papal vicar for Rome. CNS photo/Pablo Esparza
“I would like to express my firm desire to contribute to this great ongoing process by listening to everyone as much as possible, in order to learn, understand and decide things together, as St. Augustine would say, ‘as a Christian with you and a bishop for you,'” Pope Leo said.
He asked everyone to support him “in prayer and charity, mindful of the words of St. Leo the Great: ‘All the good we do in the exercise of our ministry is the work of Christ and not our own, for we can do nothing without him.'”
He expressed his love and affection for the faithful of Rome “and my desire to share with you, on our journey together, our joys and sorrows, our struggles and hopes. I too offer you ‘the little I have and am.'”
Following the Mass, the Pope appeared at the balcony of the basilica, where he briefly addressed a large crowd of people, wishing them as he did the afternoon of his election May 8, “Peace be with you.”
The Holy Year dedicated to hope, he said, encourages the faithful to be living witnesses of Christ’s hope to the world, “a world that is suffering a lot” because of war, violence and poverty.
“Thank you for walking together,” he said, “Let us all walk together.”
The Pope then got in an open Popemobile and headed to the patriarchal Basilica of St. Mary Major where he venerated the “Salus Populi Romani,” (“Salvation of the Roman People”), a Marian icon in a side chapel.
After the prayers and final blessing, he stood and prayed at the tomb of his predecessor, Pope Francis, upon which lay a single white rose.
Pope Leo then spoke to the people gathered outside the basilica, thanking them “from my heart” for their presence to be with their new bishop, “united as members of the Diocese of Rome.”
Before going to St. John Lateran for the Mass, Pope Leo also met with Rome’s mayor, Roberto Gualtieri, in a brief ceremony at the bottom of the steps below city hall.
Pope Leo said he felt the “serious but enthusiastic responsibility of serving all members” of the Diocese of Rome, “having at heart, above all, the faith of the people of God and, therefore, the common good of society.”
“We are partners, each in its own institutional setting,” he said. And yet, as he was about to take possession of the city’s cathedral, “Today I can say for you and with you, I am Roman,” which was met with great applause.
Also May 25, the Pope led a crowd in St. Peter’s Square in praying the “Regina Coeli” at noon.
Speaking from the window of the Apostolic Palace, the Pope said, “Let us resolve to bring (the Lord’s) love everywhere, never forgetting that each of our sisters and brothers is a dwelling place of God and that his presence is manifested above all in the little ones, in the poor and the suffering, who ask us to be thoughtful and compassionate Christians.”