He was a priest in the Norwegian Church Abroad in Leith from 1919 to 1926, then priest in Oslo from 1928. He worked in the East End of Oslo, and there were some protesters when he was suggested as curate in Frogner in 1936. Minister Nils Hjelmtveit ignored the protests and hired Schübeler.
He issued the book Kirkekampen slik jeg så den in 1945, and also Foreign sværds egg in 1927, Boken om bispen in 1938 and Finnlands sjel i Finnlands strid in 1940.
From 1942 to 1945 Schübeler was a member of Den midlertidige kirkeledelse, "the temporary church leadership" because of the German occupation of Norway.