What are some books/resources on the specific topic/doctrine of "triumphalism"? Meaning, that (essentially) all nations and kings will bow to Christ eventually on this present earth BEFORE the consummate state (before the new heavens and new earth). (I refrain from using the terminology "postmil" or "amil" because I am not so much referring to the existence, timing, nature of the millennium, as both Postmils and Optimistic Amils are triumphalists.) This would maybe be some sort of resource addressing Biblical prophecy, psalms, etc. Thank you!