If I were tied to the letter of the Scriptures and rigid dogma, I believe I could not have painted these profoundly felt paintings about the Eucharist and the 'Pentecost' [religious paintings, he made c. 1909-11) I had to be artistically free - not have God before me. like a steely Assyrian ruler, but God in me, hot and holy like Christ's love.
Source, in full
as quoted in Expressionism, a German intuition, 1905-1920, Neugroschel, Joachim; Vogt, Paul; Keller, Horst; Urban, Martin; Dube, Wolf Dieter; (transl. Joachim Neugroschel); publisher: Solomon R. Guggenheim Foundation, New York, 1980, p. 3