In 1933, prior to the annexation of Austria into Germany, the population of Germany was approximately 67% Protestant and 33% Catholic; Jews made up less than 1% of the population. A census in May 1939, six years into the Nazi era and incorporating the annexation of mostly Catholic Austria into Germany, indicates that 54% considered themselves Protestant, 40% Catholic, 3.5% self-identified as "gottgläubig" (lit. "believers in god", often described as predominately creationist and deistic), and 1.5% as non-religious.
There was some diversity of personal views among the Nazi leadership as to the future of religion in Germany. Anti-Church radicals included Hitler's Personal Secretary Martin Bormann, Minister for Propaganda Joseph Goebbels, Neo-Pagan Nazi Philosopher Alfred Rosenberg, and Neo-Pagan Occultist Reichsführer-SS Heinrich Himmler. Some Nazis, such as Hans Kerrl, who served as Hitler's Minister for Church Affairs pushed for "Positive Christianity", which was a uniquely Nazi form which rejected its Jewish origins and the Old Testament, and portrayed "true" Christianity as a fight against Jews.
Nazism wanted to transform the subjective consciousness of the German people—their attitudes, values and mentalities—into a single-minded, obedient "national community". The Nazis believed they would therefore have to replace class, religious and regional allegiances. Under the Gleichschaltung process, Hitler attempted to create a unified Protestant Reich Church from Germany's 28 existing Protestant churches. The plan failed, and was resisted by the Confessing Church. Persecution of the Catholic Church in Germany followed the Nazi takeover. Hitler moved quickly to eliminate Political Catholicism. Amid harassment of the Church, the Reich concordat treaty with the Vatican was signed in 1933, and promised to respect Church autonomy. Hitler routinely disregarded the Concordat, closing all Catholic institutions whose functions were not strictly religious. Clergy, nuns, and lay leaders were targeted, with thousands of arrests over the ensuing years. The Church accused the regime of "fundamental hostility to Christ and his Church". Smaller religious minorities such as the Jehovah's Witnesses and Bahá'í Faith were banned in Germany, while the eradication of Judaism by the genocide of its adherents was attempted. The Salvation Army, the Christian Saints and the Seventh-day Adventist Church all disappeared from Germany, while astrologers, healers and fortune tellers were banned. The small pagan "German Faith Movement", which worshipped the sun and seasons, supported the Nazis. Many historians believed that Hitler and the Nazis intended to eradicate Christianity in Germany after winning victory in the war.