1. In the Middle Ages, it was believed that monarchs ruled by the grace of God. That is supported by 1 Peter 2:13-17.
2. I never said that I know the exact day Christ will return. It will happen sometime after the Antichrist is slain by St. Michael the Archangel and according to Catholic prophecy, the Antichrist will come after the death of the Great Monarch. I never assigned a definite date when those events will occur.
3. And I believe that God is decreeing right now that it should be enacted and that I should help enact it just like he decreed that Joan of Arc enact the prophecy of the virgin that would save France.
4. It is Catholic prophecy that before the Antichrist, there will be a Great Monarch who will bring an era of peace.
https://en.wikipedia.org/wiki/Last_Roman_Emperor