On Saturday, Benedict revisited another key aspect of Vatican II by reviving the old Latin Mass. Traditional Catholics cheered the move, but more liberal ones called it a step back from Vatican II.

Benedict, who attended Vatican II as a young theologian, has long complained about what he considers the erroneous interpretation of the council by liberals, saying it was not a break from the past but rather a renewal of church tradition.

In the latest document — formulated as five questions and answers — the Vatican seeks to set the record straight on Vatican II’s ecumenical intent, saying some contemporary theological interpretation had been “erroneous or ambiguous” and had prompted confusion and doubt.

It restates key sections of a 2000 document the pope wrote when he was prefect of the congregation, “Dominus Iesus,” which set off a firestorm of criticism among Protestant and other Christian denominations because it said they were not true churches but merely ecclesial communities and therefore did not have the “means of salvation.”

In the new document and an accompanying commentary, which were released as the pope vacations here in Italy’s Dolomite mountains, the Vatican repeated that position.

“Christ ‘established here on earth’ only one church,” the document said. The other communities “cannot be called ‘churches’ in the proper sense” because they do not have apostolic succession — the ability to trace their bishops back to Christ’s original apostles.

‘Identity of the Catholic faith’

The Rev. Sara MacVane of the Anglican Centre in Rome, said there was nothing new in the document.

“I don’t know what motivated it at this time,” she said. “But it’s important always to point out that there’s the official position and there’s the huge amount of friendship and fellowship and worshipping together that goes on at all levels, certainly between Anglican and Catholics and all the other groups and Catholics.”

The document said Orthodox churches were indeed “churches” because they have apostolic succession and that they enjoyed “many elements of sanctification and of truth.” But it said they lack something because they do not recognize the primacy of the pope — a defect, or a “wound” that harmed them, it said.

“This is obviously not compatible with the doctrine of primacy which, according to the Catholic faith, is an ‘internal constitutive principle’ of the very existence of a particular church,” the commentary said.

Despite the harsh tone of the document, it stresses that Benedict remains committed to ecumenical dialogue.

“However, if such dialogue is to be truly constructive, it must involve not just the mutual openness of the participants but also fidelity to the identity of the Catholic faith,” the commentary said.

‘Not backtracking on ecumenical commitment’

The document, signed by the congregation prefect, U.S. Cardinal William Levada, was approved by Benedict on June 29, the feast of Sts. Peter and Paul — a major ecumenical feast day.

There was no indication about why the pope felt it necessary to release the document, particularly since his 2000 document summed up the same principles. Some analysts suggested it could be a question of internal church politics, or that it could simply be an indication of Benedict using his office as pope to again stress key doctrinal issues from his time at the congregation.

Father Augustine Di Noia, undersecretary for the Congregation for the Doctrine of the Faith, said the document did not alter the commitment for ecumenical dialogue, but aimed to assert Catholic identity in those talks.

“The Church is not backtracking on ecumenical commitment,” Di Noia told Vatican radio.