Library Hippolytus Refutation of All Heresies
Book 10
Chapter 22: The Phrygians or Montanists Continued
But others of them, being attached to the heresy of the Noetians, entertain similar opinions to those relating to the silly women of the Phrygians, and to Montanus. As regards, however, the truths appertaining to the Father of the entire of existing things, they are guilty of blasphemy, because they assert that He is Son and Father, visible and invisible, begotten and unbegotten, mortal and immortal. These have taken occasion from a certain Noetus to put forward their heresy.
English translation by J.H. MacMahon, in Ante-Nicene Fathers, Vol. V (eds. Alexander Roberts and James Donaldson; Buffalo: Christian Literature Publishing Co., 1886). Public domain. Digital text via New Advent Church Fathers.