Beyond studying and writing about ecumenical theology, Fr.

Dyrness works at the intersection of Reformed, evangelical, global and ecumenical theology.

He held a professorship in ecumenical theology at Lausanne and was a member of the European Christian Environmental Network.

This work of ecumenical theology and ecclesiology focuses on the role of the Eastern Catholic Churches in furthering the cause of Christian unity.

He continues to teach at the university as a professor of ecumenical theology.

Perhaps according to Father's ecumenical theology, I could find something religious in my resorting to writing, which requires faith and forces upon me the rigors of a mendicant life.

But ecumenical theology was nearly always the concern of liberal theologians, especially Protestant ones.

Professor of dogmatic theology, Mainz, 1968-1971 ; of dogmatic and ecumenical theology, Freiburg, 1971-1983.

He completed a master's degree in ecumenical theology at Trinity College, University of Dublin in Ireland in 1985.

He had to leave the Catholic faculty, but remained at the University of Tübingen as a professor of ecumenical theology, serving as an emeritus professor since 1996.