<p>17:9 <i>Here is the mind that has wisdom. The seven heads are the seven mountains on which the woman sits</i>- As discussed on :3, the city with seven hills may have in its time referred to Rome, and also to Jerusalem, the seat of the Jewish satan which so persecuted the early church before AD70. But the latter day reference is to the &quot;great city&quot; where Babylon shall be enthroned; and I have argued on 16:19 that this is literal Jerusalem. But the seven mountains may refer also to a system of seven supporting elements within the beast system which are to be found within the beast headquarters in Jerusalem.</p>