A representative from each of the Church in Wales, the Roman Catholic Church in Wales, the Free Church Council, Churches Together in Wales (CYTUN) and Interfaith Council for Wales.
Bydd cynrychiolydd o bob un o'r canlynol - yr Eglwys yng Nghymru, yr Eglwys Gatholig yng Nghymru, Cyngor Eglwysi Rhyddion Cymru, Eglwysi Ynghyd yng Nghymru (CYTUN) a Chyngor Rhyng-ffydd Cymru.