In another, similar statement, Einstein referred explicitly to the Catholic Church (Lapide, p. 251). This is an extraordinary testimony by an agnostic German scientist of Jewish heritage. Even though there were traitors in her ranks, the Church still opposed the Nazi movement…
Not trusting the new regime, the Vatican signed a Concordat with the Reich on July 20, 1933 in an attempt to protect the Church’s rights in Germany. But the Nazis quickly violated its articles. In Lent 1937 Pope Pius XI issued the encyclical “Mit brennender Sorge” (With burning sorrow) with the help of German bishops and Cardinal Pacelli (later Pope Pius XII). It was smuggled into Germany and read in all German Catholic churches at the same hour on Palm Sunday 1937. It did not explicitly mention Hitler or Nazism, but it firmly condemned the Nazi doctrines. On September 20, 1938, Pius XI told German pilgrims that no Christian can take part in anti-Semitism, since spiritually all Christians are Semites.