In this dissertation we are not only converned in studying the development of the ecumenical movement, but our attention will also be focused upon this question, "In what particulars in the ecumenical movement relevant to the New Testament Church?" Our first concern will be to give an account of this movement noting personnel, places, conferences, emphases, etc. Then we shall compare and contrast the ecumenical movement with the organism called the church, the earliest record of which is in the New Testament.