Manichaeism

Manichaeism was a major religion founded by the Iranian prophet Mani in the Sasanian Empire. Manichaeism taught an elaborate dualistic cosmology describing the struggle between a good, spiritual world of light, and an evil, material world of darkness.

Eusebius commented concerning the error of the Manichees:

• — In the mean time, also, that madman Manes, (Mani is of Persian or Semitic origin) as he was called, well agreeing with his name, for his demoniacal heresy, armed himself by the perversion of his reason, and at the instruction of Satan, to the destruction of many. He was a barbarian in his life, both in speech and conduct, but in his nature as one possessed and insane. Accordingly, he attempted to form himself into a Christ, and then also proclaimed himself to be the very paraclete and the Holy Spirit, and with all this was greatly puffed up with his madness. Then, as if he were Christ, he selected twelve disciples, the partners of his new religion, and after patching together false and ungodly doctrines, collected from a thousand heresies long since extinct, he swept them off like a deadly poison, from Persia, upon this part of the world. Hence the impious name of the Manichaeans spreading among many, even to the present day. Such then was the occasion of this knowledge, as it was falsely called, that sprouted up in these times.