In the 16th and 17th century Michael Brüggemann (also known as Pontanus or Michał Mostnik), Simon Krofey (Szimon Krofej) and J.M. Sporgius introduced Kashubian into the Lutheran Church. Krofey, pastor in Bytów (Bütow), published a religious song book in 1586, written in Polish but also containing some Kashubian words. Brüggemann, pastor in Schmolsin, published a Polish translation of some works of Martin Luther and biblical texts, also containing Kashubian elements. Other biblical texts were published in 1700 by Sporgius, pastor in Schmolsin. His ""Schmolsiner Perikopen"", most of which is written in the same Polish-Kashubian style of Krofey's and Brüggemann's books, also contain small passages ("6th Sunday after Epiphanias") written in pure Kashubian.