
Cardinal Gerhard Müller warns that a Vatican synod report promotes heretical views on homosexuality, directly challenging Catholic doctrine on marriage and sin.[1][2]
Story Snapshot
- Study Group 9’s May 5 report includes testimonies from men in same-sex civil marriages claiming sin lies not in their relationships but in lack of faith.[1][2][3]
- Cardinal Müller condemns the document as a “heretical relativization” of sacramental marriage, welcoming LGBT ideology.[1]
- The report proposes new discernment questions on homosexuality, condemns conversion therapies, and cites Church documents while highlighting pastoral tensions.[2][3]
- Critics argue it platforms dissent without rebuttal, undermining teachings from Persona Humana and Homosexualitatis Problema.[6]
Report from Study Group 9 Sparks Doctrinal Alarm
Study Group 9 released its final report on May 5, 2025, titled “Theological Criteria and Synodal Methodologies for Shared Discernment of Emerging Doctrinal, Pastoral, and Ethical Issues.” Led by Cardinal Carlos Gustavo Castillo Mattasoglio of Lima, Peru, the group operates under the Synod on Synodality, established by Pope Francis in February 2024. The document addresses “emerging issues” like same-sex relations, replacing “controversial” to signal a paradigm shift from Vatican II models.[2][3]
to examine the issues that arose during the first session of the Synod on Synodality in October 2023.
The study group, composed of seven members, included Cardinal Carlos Castillo Mattasoglio👿, Archbishop of Lima, Peru; Archbishop Filippo Iannone👿, Prefect of the Dicastery👇
— Sandra Meireles. (@SandraMeireles2) May 13, 2026
Authors include Cardinal Castillo, known for heterodox views on homosexuality, Archbishop Filippo Iannone, and Father Maurizio Chiodi, who deems some homosexual relationships “fruitful” under conditions. The report emphasizes “pastoral” horizons and “relational conversion” through lived experiences, condemning conversion therapies’ “devastating effects” on homosexual persons based on testimonies.[2][3]
Testimonies Challenge Church Teaching on Sin
The report annexes English testimonies from two Catholic men in civil same-sex marriages. One states his account “bears witness to the discovery that sin, at its root, does not consist in the (same-sex) couple relationship, but in a lack of faith in a God who desires our fulfilment.” It portrays the Christian community as a place of love beyond mere welcome.[1][3]
These narratives aim to guide local Churches in synodal discernment, identifying developmental stages without universal solutions. Critics note the absence of clarification against Church doctrine, which deems homosexual acts intrinsically disordered per Persona Humana (1975) and Homosexualitatis Problema (1986).[2][6]
Cardinal Müller’s Strong Condemnation
Cardinal Gerhard Müller, former prefect of the Congregation for the Doctrine of the Faith, blasts the report for platforming “anti-Catholic, pro-homosexual ideology.” He calls its relativization of natural and sacramental marriage a step toward LGBT ideology’s materialistic view of humanity, akin to destructive heresies like Manichaeism or Pelagianism.[1]
Müller highlights enthusiastic reception by LGBT advocates as revealing. He stresses historical resistance by popes, councils, and Doctors like Augustine and Aquinas preserved the Church. The report cites Homosexualitatis Problema’s call for pastoral care in accord with doctrine, yet testimonies confirm tensions between “doctrinal firmness” and “pastoral welcome.”[1][3]
Critics Highlight Doctrinal Contradictions
Observers from National Catholic Register and Catholic Herald decry the report for questioning if same-sex relations are sinful via testimonies, misrepresenting the Courage apostolate that aids same-sex-attracted Catholics in chastity. It proposes reflection questions prioritizing vulnerable LGBTQ experiences without empirical data or broader verification.[6]
No explicit endorsement or implementation path exists; the advisory document relies on anecdotes amid polarized reception. Traditionalists see it exposing synod contradictions—citing unchanging doctrine while amplifying dissent—echoing patterns since Vatican II where pastoral innovation clashes with moral teaching.[5][6]
Sources:
[1] Web – New report suggests the Synod still cannot speak clearly …
[2] Web – Synod group proposes new reflection questions about …
[3] Web – Synod report includes testimonies from civilly ‘married’ …
[5] Web – The Synod on Synodality and the LGBT Debate
[6] Web – Critics Say Synod Report Undermines Church Teaching …










