The Church History, Book 4
Musanus Against the Encratites
Of Musanus, whom we listed among the writers above, there is in circulation a discourse most effective at winning people back, written by him to certain brothers who had turned aside to the heresy of the so-called Encratites. This heresy was then just beginning to sprout, and was bringing into life a strange and destructive false belief. Its founder, the story goes, was Tatian.