And here is the mind which has wisdom. The seven heads are seven mountains, on which the woman sits.
All Commentaries on Revelation 17:9 Go To Revelation 17
Hippolytus of Rome
AD 235
For if the blessed prophets who preceded us did not choose to proclaim these things, though they knew them, openly and boldly, lest they should disquiet the souls of men, but recounted them mystically in parables and dark sayings, speaking thus, "Here is the mind which hath wisdom"