High Quality Content by WIKIPEDIA articles! Mit brennender Sorge (German: "With burning concern") is a Catholic Church encyclical of Pope Pius XI, published on 10 March 1937 (but bearing a date of Passion Sunday, 14 March). Written in German, not the usual Latin, it was read from the pulpits of all German Catholic churches on one of the Church`s busiest Sundays, (Palm Sunday). It condemned breaches of the Reichskonkordat agreement signed between the Nazi government and the Church in 1933, and criticised those parts of Nazism that contradicted Catholicism, and condemned pantheistic confusion, neopaganism, "the so-called myth of race and blood", and statolatry. It contained a vigorous defence of the Old Testament out of belief that it prepared the way for the New.In the opinion of some, it contained a veiled attack on Adolf Hitler.