Kommission für Glauben und Kirchenverfassung
The period of Samuel's association with the Faith and Order Commission of World Council of Churches coincided with two progresses where he made a valuable and lasting contribution. Those were "Unofficial Consultation of Theologians of the Eastern and Oriental Orthodox Churches" held in Arhus-1964, Bristol-1967, Geneva-1970 and Addis Ababa-1971. Samuel presented papers at all of them and helped the participants in arriving at the conclusion that the difference in Christological Doctrine between the two families of Churches was only verbal and not substantial. These papers and joint agreed statements have been published in different journals.