We are all to understand that there is a fallen angel who was once next to Christ in honor among the heavenly host. His work of deception was done in so great secrecy that the angels in less exalted positions supposed that he was the Ruler of heaven. Satan made the representation that all wrong insinuations existing in heaven originated among the angels, while he himself had made suggestions which would never have been entertained by the angels, had he not created them. He artfully presented these things to God, as having come from the angels, while they all originated with Satan himself.... (TDG 256.2) MC VC