Origin of the work:
This is a systematic polemic dealing with the beliefs of the Socinians. The tract arose out of the debate between Comenius and the Socinian D. Zwicker. Having been expelled from Poland, the Socinians spread their teaching in the Netherlands. Increasingly, Comenius came to realise that laymen could not discern the crucial differences between their faith and that of other Christian confessions, and it was thus that after the publication of his second polemic against Zwicker (De sociniano irenico) he decided to clarify the essence and harmfulness of Socinianism in this new work. The fundamentals of Socinian belief were drawn from their own catechism; it deals in particular with their teachings, which in his view were unacceptable to true Christians.
For further study, see also:
J. V. Novák & J. Hendrich, Jan Amos Komenský, jeho život a spisy. Prague 1932, pp576-577
Jan Kumpera, Jan Amos Komenský, poutník na rozhraní věků. Prague & Ostrava 1992, p299