 During his time as bishop (1949–1970) he did not write many major works.As custom dictated, he wrote a "Herdabrev" (pastoral letter) that outlined his theological program.This “letter” was really a book-length text, in which he outlined the inheritance of the Church of Sweden from three different eras — the first being the early church or New Testament times, the second being the Reformation, and a third on 19th-century revival.