 He was suspected of Crypto-Calvinist sympathies after publishing his "Praxis evangeliorum" in 1601 and did little to refute these claims.Other well-known works of devotional literature written by Moller include "Meditationes Sanctorum Patrum" (1584–1591), "Soliloquia de passione Jesu Christi" (1587) and "Mysterium magnum" (1597).All of these works show clearly how Moller was influenced by another German theologian with links to mysticism, Valerius Herberger.