"Lucifer (Lat.). The planet Venus, as the bright “Morning Star”. Before Milton, Lucifer had never been a name of the Devil. Quite the reverse, since the Christian Saviour is made to say of himself in Revelations (xvi. 22.) “I am . . . the bright morning star” or Lucifer. One of the early Popes of Rome bore that name; and there was even a Christian sect in the fourth century which was called the Luciferians."
January 1, 1970
https://en.wikiquote.org/wiki/Helena_Blavatsky