Catholic and Anglican bishops will hold an ecumenical summit in Rome and Canterbury for the Week of Prayer for Christian Unity.
More than 50 bishops are set to participate over 22-29 January, arriving in pairs representing each denomination in 27 countries.
On 25 January, Pope Francis and the Archbishop of Canterbury Justin Welby will commission the bishops at the tomb of St Paul, in the Basilica of St Paul Outside the Walls south of the centre of Rome.
They will be sent out “in pairs, to be witnesses to Christian unity”, according to a statement from the Anglican Communion.
The service will recall Christ’s commission of the Apostles, when he gathered the Twelve “to send them out two by two, and gave them authority over unclean spirits” (Mark 6:7), and the other disciples he “sent on ahead of him in pairs to every town and place where he himself intended to go” (Luke 10:1).
“This will be a significant moment, symbolic for Anglican-Catholic bonds and advancing ecumenical dialogue,” the Anglican Communion statement said.
The summit, “Growing Together”, has been organised by the International Anglican-Roman Catholic Commission for Unity and Mission (IARCCUM), “to discuss ways of growing together in joint witness and mission in the world”.
The programme of discussions in Rome includes visits to holy sites, with an Anglican service of choral evensong in St Peter’s and a visit to the Church of San Gregorio al Celio, from which Pope Gregory the Great sent St Augustine of Canterbury to England in 597.
IARCCUM held a similar commissioning service in San Gregorio in October 2016, as part of an eight-day pilgrimage in Canterbury and Rome with 19 bishops.
The 2024 summit will move to Canterbury on 26-29 January, to discuss a joint statement on the future work of IARCCUM.
Cardinal Stephen Chow SJ, the Bishop of Hong Kong, will preach at the Sunday choral eucharist in Canterbury Cathedral.