The text is an attempt to show Jan Kustos’ attitude – the person
who is regarded to be the leader of separatists in the area of
interwar Silesian voivodship – towards the Catholic Church.
The text presents a brief biography of Jan Kustos (1893–1932),
also the synthetic list of mottos and views proclaimed by him
and concerning the role and meaning of the Catholic Church
as well as activity of Catholic clergy has been made. The mottos
and views are present in public performances and in press
publications in the magazine “The voice of Upper Silesia”
which was published by Jan Kustos. An attempt to show the
evolution of an attitude towards the Church and its preaching
between 1922 and 1923 (in the first decade of existence in the
structure of the reborn state of Polish Silesian voivodship)
has also been made; the attitude which from full acceptacion
turned into noticeable criticism of a part of clergy (which he
accused of political commitment).