He was particularly a towering figure in the Ecumenical Movement for Christian unity, to which he devoted a major part of his long life and work as an early pioneer in the 1930s, an architect in the formation of the World Council of Churches, and an influential builder from within the Faith and Order Commission, where he made the voice of Eastern Orthodoxy heard by witnessing to the historic experience and the faith of the early undivided Church.

There follow discussions of the ambiguous position of the Apocalypse in Eastern Orthodoxy (John A McGuckin), in Luther's views (Philip D.

Its enmity toward the United States draws its intellectual inspiration partly from the generally militant, anti-Western legacy of Eastern Orthodoxy.