These were collected and published by Arndt under the title Acht-und-fünfzig schöne, auserlesne, geist- und trostreiche Traktätlein (Lüneburg, 1622),[3] containing also fourteen hymns with their melodies, one of them being "Was hat gethan der heilige Christ?"

[4] Prætorius' tracts were later arranged in the form of dialogues, with certain moderations, by M. Statius in his Geistliche Schatzkammer der Gläubigen (Lüneburg, 1636, and often).

There arose over his writings the Prætorian controversy, Abraham Calovius assailing the view of Prætorius and Statius that the faithful possess salvation not only in prospect but in reality.

Spener's antagonist, G. C. Dilfeld, considered Prætorius akin to Esaias Stiefel, and the general superintendent of Greifswald, Tiburtius Rango,[5] secured the prohibition of the Schatzkammer in Swedish Pomerania.

Despite all this, Prætorius' writings were continually read, and in the second quarter of the 17th century, they influenced a circle of converts in Cottbus and its vicinity.