His publications include
The Estates of Trinity College Dublin (Dundalgan Press, 1992) and
Ancient and Modern: A Short History of the Church of Ireland (Four Courts Press, 1995). More recently he has written a biography of John Henry Bernard (Linden Publishing, 2008). MacCarthy has become known for his controversial opinions and liberal theology. He has been a champion of ecumenical dialogue and during his time a
Roman Catholic and a former
Moderator of the
Presbyterian Church were elected to the cathedral's 24-person
Chapter. In October 2005 he gave a sermon which appeared in an abridged form in
The Irish Times on 13 October 2005. It proved controversial, with one commentator in
The Brandsma Review dubbing it
The rubber-stamping of buggery. MacCarthy criticised the then
Taoiseach Bertie Ahern for issuing a public invitation to a State reception for Cardinal
Desmond Connell in 2001 in the joint names of the Taoiseach and his then partner. MacCarthy declined to attend and received over 300 letters of support, many from Roman Catholics. In April 2008 in a letter to
The Irish Times he referred to Muslims and Hindus as indoctrinating their children into "a cult". In St Patrick's he has been censured by both board and chapter. In 2011 he invited all seven presidential candidates to support his suggestion that St Patrick's should become a national ecumenical cathedral for all Christians in Ireland. ==References==