The patriarch, Mar Dinkha IV, visited Pope John Paul II in Rome in 1984 and participated in a day of prayer for peace at Assisi in 1986.
[9] A slight reform of the liturgy of Addai and Mari celebrated by the Chaldean Catholic Church came into effect on 6 January 2007, making uniform the many different uses of each parish and removing additions introduced over the centuries in imitation of the Roman rite.
The main changes were: a return to the ancient arrangement of the interior of churches, restoration of the preparation of the bread and wine before the beginning of the service and removal of Filioque from the Creed.
[10] The prayers of the liturgy of Addai and Mari are of three types, according as they are recited by the celebrating priest or bishop:[11] The Eucharistic Prayers (or Anaphoras) of all the present Christian Churches that believe in apostolic succession include the Words of Institution, and the relevant Institution narrative, with the sole exception of some versions of the Anaphora of Addai and Mari.
Mar Aprem Mooken of India indicates that many priests of the Assyrian Church of the East follow the old practice of not including the Words of Institution.
Some scholars believe that the medieval manuscript represents the 4th-century tradition (or even earlier), while others believe that the Words of Institution were originally present and were later dropped, probably due to the liturgical reform of Mar Isho-Yab III in about AD 650.
In the closing decades of the 20th century, ecumenical rapprochement with the Assyrian Church of the East and the situation of the by then widely scattered Assyrian and Chaldean Christians who lacked a priest of their own Church made more acute the issue of the validity of the Eucharistic consecration of the form of the Anaphora of Addai and Mari that did not include the Words of Institution, as used by the Assyrian Christians, while the Eastern Catholic Churches that use the East Syriac Rite include in their versions of this liturgy the Institution narrative, with its Words of Institution.
[citation needed] The sedevacantist website Novus Ordo Watch denounced recognition of the form of the Holy Qurbana of Addai and Mari in use in the Assyrian Church as valid.
They[24] reject the statement of the Pontifical Council for Promoting Christian Unity that the words of the institution of the Eucharist are in fact present in a euchological and disseminated manner.
And he our Lord and our God came and in his lifegiving gospel taught us all the purity and holiness of the prophets and the apostles and the martyrs and the confessors and the bishops and the doctors and the presbyters and the deacons and all the children of the holy catholic church, even them that have been signed with the living sign of holy baptism.And we also, o my Lord, thy weak and frail and miserable servants who are gathered together in thy name, both stand before thee at this time and have received the example which is from thee delivered unto us, rejoicing and praising and exalting and commemorating and celebrating this great and fearful and holy and lifegiving and divine mystery of the passion and the death and the burial and the resurrection of our Lord our Saviour Jesus Christ.And may there come, o my Lord, thine Holy Spirit and rest upon this offering of thy servants and bless it and hallow it that it be to us, o my Lord, for the pardon of offences and the remission of sins and for the great hope of resurrection from the dead and for new life in the kingdom of heaven with all those who have been wellpleasing in thy sight.And for all this great and marvellous dispensation towards us we will give thee thanks and praise thee without ceasing in thy Church redeemed by the precious blood of thy Christ, with unclosed mouths and open faces lifting up praise and honour and confession and worship to thy living and holy and lifegiving name now and ever and world without end.The Institution narrative, with its Words of Institution, is placed by Syro-Malabar Catholic Church in the middle of the Oblation, while the Chaldean Catholic Church places it just before the Epiclesis.