In Canon 60 of the Penthekte Synod in Constantinople which was held in 692, we read the following:
Since the Apostle exclaims that he who cleaves to the Lord is one spirit with Him, it is clear that he who is intimate with His enemy becomes one by his affinity with him. Therefore, those who pretend they are possessed by a devil and by their depravity of manners feign to manifest their form and appearance; it seems good by all means that they should be punished and that they should be subjected to afflictions and hardships of the same kind as those to which they who are truly demonically possessed are justly subjected with the intent of delivering them from the energies of the devil.
