Apocalypse of John Lectures

I wanted to recommend to any of my readers with an interest in the topic, this lecture series by Father Dennis Gordon of St Joan of Arc on the Apocalypse of John

The revelations of St John are a rich field for crackpots, and Protestants especially (whose theology forbids them from seeing symbols which might have been clear to early Christians)  speculate wildly, and identify the Whore of Babylon with Pagan Rome, if not the Church of Rome.
Father Denis’s approach is sober: each puzzle in the text is read in concert with the parallel passages in the old testament, especially the visions of Ezekiel, Daniel, or Zachariah, where the same symbols with the same meaning appear.
The parallels to the Catholic liturgy (which, again, might not be clear to the Protestants) are also drawn out.