In a joint letter of 28 October 2021, Cardinal Kurt Koch, President of the Pontifical Council for Promoting Christian Unity, and Cardinal Mario Grech, General Secretary of the Synod of Bishops, addressed the Bishops responsible for ecumenism in their Episcopal Conferences and Synods of the Oriental Catholic Churches.
The two Cardinals trust that the “ecumenical dimension of the synodal process will promote both synodality and Christian unity so that ‘all may believe’ (John 17,21)”.